Accepted Papers for Phys. Rev. Applied

Measurement of complex scattering matrix in a nano-cavity array for boundary scattering tomography

2026-09-15T10:00:00+00:00

Author(s): Andrew Tang, Romil Audhkhasi, Virat Tara, Abhi Saxena, Gokul Nath, and Arka Majumdar
On-chip silicon photonic coupled cavity arrays (CCA) are a promising platform for quantum simulators, with access to high Quality (Q) factor resonators, tunability, and foundry compatibility. Furthermore, scalable two-dimensional (2D) silicon photonic CCAs allow for simulation of rich physical pheno…
[Phys. Rev. Applied] Published Tue Sep 15, 2026

Zn${}^{2+}$ and Mn${}^{2+}$ doping effect on spin dynamics of Fe${}_{3}$O${}_{4}$-based magnetic nanoparticles: a possible path to efficient MRI contrast agents

2026-09-15T10:00:00+00:00

Author(s): Margherita Porru, Francesca Brero, Álvaro Gallo-Cordova, Rafael Pérez del Real, Manuel Mariani, Paolo Arosio, Francesco Orsini, María Del Puerto Morales, and Alessandro Lascialfari

Iron oxide-based magnetic nanoparticles (MNPs) play a major role as contrast agents for Magnetic Resonance Imaging (MRI). The introduction of Zn

^{2 +}

and Mn

^{2 +}

ions within their crystal lattice alters the magnetic anisotropy and the spin dynamical properties of the systems, which in turn influence the n…

[Phys. Rev. Applied] Published Tue Sep 15, 2026

Programmable asymmetric spin-orbit torque switching for spin logic

Rongkun Han, Dahai Wei, Jianhua Zhao, and Yuan Lu — 2026-09-15T10:00:00+00:00

Author(s): Rongkun Han, Dahai Wei, Jianhua Zhao, and Yuan Lu
Spin logic devices provide a promising route toward ultralow-power and nonvolatile information processing. In this work, we demonstrate field-free spin-orbit torque (SOT)-induced asymmetric magnetization switching in an in-plane/perpendicular magnetic anisotropy (IMA/PMA) heterostructure, characteri…
[Phys. Rev. Applied] Published Tue Sep 15, 2026

Passive detection of time-reversal-symmetry breaking using a qubit-cross-resonator circuit

Ioannis Petrides, Arpit Arora, and Prineha Narang — 2026-09-15T10:00:00+00:00

Author(s): Ioannis Petrides, Arpit Arora, and Prineha Narang
The quantum sensing landscape has been revolutionized by advanced technologies like superconducting circuits and qubit-based systems which have furthered the ability to probe and understand fundamental properties of quantum matter. Here, we propose an integrated photonic device where a transmon qubi…
[Phys. Rev. Applied] Published Tue Sep 15, 2026

Fast-feedback protocols for calibration and drift control in quantum computers

2026-09-15T10:00:00+00:00

Author(s): Alicia B. Magann, Nathan E. Miller, Robin Blume-Kohout, Peter Maunz, and Kevin C. Young
We introduce two classes of lightweight, adaptive calibration protocols for quantum computers that leverage fast feedback. The first enables shot-by-shot updates to device parameters using measurement outcomes from simple, indefinite-outcome quantum circuits. This low-latency approach supports rapid…
[Phys. Rev. Applied] Published Tue Sep 15, 2026

Unidirectional and collective emission of integrated quantum emitters

Jun Ren, Meng-Jia Chu, and Z. D. Wang — 2026-09-15T10:00:00+00:00

Author(s): Jun Ren, Meng-Jia Chu, and Z. D. Wang
Controlling the radiative dynamics of quantum emitters in structured environments is fundamental to quantum optics and light-matter interaction engineering. Photonic crystal slabs offer a versatile platform for engineering emission anisotropy, yet simultaneously achieving high directionality, radiat…
[Phys. Rev. Applied] Published Tue Sep 15, 2026

Spin-wave bandgap engineering via mode hybridization in dipolar-coupled YIG film/CoFeB nanodisk magnonic crystals

2026-09-15T10:00:00+00:00

Author(s): Junyoung Hyun, Krzysztof Szulc, Mateusz Zelent, Nikolai Kuznetsov, Lukáš Flajšman, Maciej Krawczyk, Paweł Gruszecki, and Sebastiaan van Dijken
We investigate spin-wave transport in hybrid two-dimensional magnonic crystals comprising a low-damping yttrium iron garnet (YIG) film coupled to a periodic array of CoFeB nanodisks. Using propagating spin-wave spectroscopy, super-Nyquist magneto-optical Kerr effect microscopy, and micromagnetic sim…
[Phys. Rev. Applied] Published Tue Sep 15, 2026

Observation of spin-dependent transient hybrid skin-topological effect

Zeheng Huang, Mian Peng, Aowei Yang, Yongzhi Tian, Qiang Wei, and Gang Chen — 2026-09-14T10:00:00+00:00

Author(s): Zeheng Huang, Mian Peng, Aowei Yang, Yongzhi Tian, Qiang Wei, and Gang Chen
Unlike the conventional non-Hermitian skin effect that localizes bulk wavefunctions to the boundary, the hybrid skin-topological effect (HSE) arises from the interplay between topological edge states and the non-Hermitian skin effect, resulting in the further localization of edge state wavefunctions…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Acoustic rheological characterization of binary liquid mixtures using dispersion-engineered shear surface resonances via phononic crystals

2026-09-14T10:00:00+00:00

Author(s): Jessica Monaldi, Francis Kosior, Julio Iglesias-Martinez, Laurent Badie, Rafael J. Jiménez Riobóo, Didier Rouxel, Frédéric Sarry, and Mourad Oudich
Establishing the physical and rheological properties, such as density and viscosity, of biological fluids, cells and tissues remains a central challenge in biology due to the liquid operating environment. In this work, we introduce reflector-free acoustic resonators that generate highly confined she…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Single-spin Nitrogen-Vacancy hybrid magnetometer with enhanced static field sensitivity

2026-09-14T10:00:00+00:00

Author(s): Vinaya K. Kavatamane, Dewen Duan, Hadi Zadeh-Haghighi, Manh-Huong Phan, and Gopalakrishnan Balasubramanian
Precision sensing and imaging of weak static magnetic fields are crucial for a variety of emerging nanoscale applications. While nitrogen-vacancy (NV) centers in diamond provide exceptional AC magnetic field sensitivity with nanoscale spatial resolution, their sensitivity to static (DC) magnetic fie…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Oil-based electrode design in dielectric barrier discharge for high-performance plasma photonic crystals

2026-09-14T10:00:00+00:00

Author(s): Shuo Wang, Xiao Qin, Miao Zhang, Tengkun Deng, Fucheng Liu, Yafeng He, and Weili Fan
We demonstrate a design for dielectric barrier discharge (DBD) by utilizing dimethyl silicone oilbased electrode. This design enables the formation of high-performance plasma photonic crystals (PPCs), supporting for a wide range of gas pressures, a broad range of temperatures, and significantly impr…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Dual-modulation-driven triple state control of optical chirality in a heterostructure metasurface

2026-09-14T10:00:00+00:00

Author(s): Yapeng Dou, Yihua Zhong, Lingli Ba, Jianmin Zhao, Dongyang Wang, Quan Li, Junliang Yang, and Quanlong Yang
Active control of chiroptical responses in metasurfaces is critical for advancing photonic spin-selective technologies. Here, we propose and experimentally demonstrate a multifunctional chiral metasurface based on the phase change material of vanadium dioxide (VO₂) that offers triple-state switching…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Acoustic wave diffraction in metagrating with broken mirror symmetry

2026-09-14T10:00:00+00:00

Author(s): Dongping Zhou, Yugan Tang, Yanan Zhang, Haonan Wang, Pengtao Lai, Yuanshuo Liu, Hui Liu, Hua Cheng, and Shuqi Chen
Mirror symmetry of transmission is generally considered an inherent property of reciprocal systems. Metagratings, governed by the acoustic diffraction laws in periodic lattice, have brought new vitality to classical wave physics and its manipulation. However, even using the diffraction ability of wa…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Dynamic cloaking in thin elastic plates: A metamaterial design methodology based on geometric transformation

Léo Pradier, Kévin Billon, Baptiste Chomette, Manuel Collet, and Arnaud Hubert — 2026-09-14T10:00:00+00:00

Author(s): Léo Pradier, Kévin Billon, Baptiste Chomette, Manuel Collet, and Arnaud Hubert
Since the first proofs of concept in electromagnetics concerning the possibility of invisibilizing the presence of an inclusion in a field, a considerable amount of research has been carried out with the objective of generalizing these properties for other physics. The case of waves in elastic solid…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

LaLi-POP vapor-cell atomic clock

Michael Huang and James Camparo — 2026-09-14T10:00:00+00:00

Author(s): Michael Huang and James Camparo
Arguably, the lamp-pumped vapor-cell atomic clock is the workhorse of precise timekeeping in space. However, the present-day Rb atomic frequency standard (RAFS) has two clear deficiencies: 1) its short-term stability is limited by weak optical pumping, and 2) its long-term stability can be limited b…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Broadband achromatic acoustic metalens based on side-branch cavity units with near constant group delay

Zihao Su, Ze-Guo Chen, and Ming-Hui Lu — 2026-09-14T10:00:00+00:00

Author(s): Zihao Su, Ze-Guo Chen, and Ming-Hui Lu
Broadband achromatic acoustic focusing remains challenging because most metalenses provide only single frequency phase compensation and lack the approximately constant group delay that required to suppress focal drift. Here, we show that achromatic focusing can be achieved when the unwrapped transmi…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Mid-infrared single-pixel imaging with a large-area GaAs sensor

2026-09-14T10:00:00+00:00

Author(s): Huijie Ma, Ziyu He, Jianan Fang, Yanan Li, Ruiyang Qin, Wen Zhang, Jixi Zhang, Min Peng, Zhuohang Wei, Kun Huang, and Heping Zeng
Non-degenerate two-photon absorption (ND-TPA) detection has emerged as a highly promising approach for room-temperature mid-infrared (MIR) imaging by exploiting the nonlinear interaction between infrared photons and pump radiation in wide-bandgap semiconductors. However, scaling ND-TPA imagers towar…
[Phys. Rev. Applied] Published Mon Sep 14, 2026

Single-shot metrology of attosecond ultraviolet pulses from first-principles electron dynamics

Ke Peng, Jun Wang, and Xi Zhao — 2026-09-11T10:00:00+00:00

Author(s): Ke Peng, Jun Wang, and Xi Zhao
Attosecond and sub-attosecond pulses in the deep-ultraviolet (DUV), vacuum-ultraviolet (VUV), and soft–X-ray regimes provide direct access to electron dynamics in different electronic shells on their natural timescales. Despite rapid experimental progress, the temporal characterization of broadband …
[Phys. Rev. Applied] Published Fri Sep 11, 2026

Qubit-efficient variational quantum optimization via Pauli correlation encoding: Application to large-scale power demand portfolio optimization

Takuya Yoshioka, Keita Sasada, Riku Usuki, Yuichiro Nakano, and Keisuke Fujii — 2026-09-11T10:00:00+00:00

Author(s): Takuya Yoshioka, Keita Sasada, Riku Usuki, Yuichiro Nakano, and Keisuke Fujii
Variational quantum algorithms offer a promising route to combinatorial optimization, but their applicability is limited by the challenge of encoding large-scale problems within restricted qubit resources. In this work, we introduce a qubit-efficient variational framework based on Pauli correlation …
[Phys. Rev. Applied] Published Fri Sep 11, 2026

Transition metal–functionalized BO monolayers as promising catalysts for the hydrogen-evolution reaction: A first-principles perspective

Soumendra Kumar Das, Sridhar Sahu, Prasanjit Samal, and Brahmananda Chakraborty — 2026-09-11T10:00:00+00:00

Author(s): Soumendra Kumar Das, Sridhar Sahu, Prasanjit Samal, and Brahmananda Chakraborty
The development of a highly efficient electrocatalyst for hydrogen evolution reaction (HER) plays a vital role for the process of water splitting. Two-dimensional (2D) materials are crucial for the HER due to having a large surface-to-volume ratio, tunable electronic properties, and abundant active …
[Phys. Rev. Applied] Published Fri Sep 11, 2026

Nonlinear quasipolaron photocurrent in antiferromagnetic dielectric insulators

2026-09-10T10:00:00+00:00

Author(s): Jingyi Zhu, Tao Yuan, Wenbing Tang, Wenjie He, Zhengwen Qi, Jinhong Liao, Xin Su, Fangming Li, Xiaoai Yang, Jing Liu, Guoliang Yuan, Xiubao Sui, Kai Chen, and Weijie Guo
After model the surface gap, the bulk gap and the electrode-material interface gap, and importantly, consider the effect of spin-orbit coupling strength on the effect mass, we reveal that the surface quasipolarons at the edge states, are the main charge carrier of nonlinear photocurrent, in a double…
[Phys. Rev. Applied] Published Thu Sep 10, 2026

Quantum magnetometer chip based on industrially scalable $4H$-SiC technology

2026-09-10T10:00:00+00:00

Author(s): P. A. Stuermer, D. Wirtitsch, T. Steidl, R. Wörnle, J. Körber, W. Schustereder, C. Zmoelnig, P. Urlesberger, F. Chiapolino, S. Meinardi, K. Edelmann, M. Kern, J. Anders, S. Krainer, H. Heiss, M. Trupke, and J. Wrachtrup
This work presents an industrially scalable, power‐efficient quantum magnetometer chip based on 4H‐silicon carbide (SiC) technology, leveraging wafer‐scale fabrication techniques to optimize V2 silicon vacancy color centers for reproducible fabrication. The integration of these color center ensemble…
[Phys. Rev. Applied] Published Thu Sep 10, 2026

Field-driven triggering of self-induced Floquet magnons in a magnetic vortex

2026-09-10T10:00:00+00:00

Author(s): R. Lopes Seeger, G. Philippe, A. Jenkins, L. C. Benetti, A. Schulman, R. Ferreira, J. -V. Kim, and T. Devolder
We report the experimental control of Floquet magnons in a magnetic vortex. Using microwave spectroscopy of vortex state magnetic tunnel junctions (MTJs), we find that self-induced Floquet sidebands form frequency combs whose existence depend on the vortex core orbit. By shifting the vortex core wit…
[Phys. Rev. Applied] Published Thu Sep 10, 2026

Polarized lepton source via target-normal sheath fields

Xinyu Liu, Yue Cao, Siman Liu, Jingyi Wang, Lixiang Hu, Ke Liu, and Tongpu Yu — 2026-09-09T10:00:00+00:00

Author(s): Xinyu Liu, Yue Cao, Siman Liu, Jingyi Wang, Lixiang Hu, Ke Liu, and Tongpu Yu
Sources of polarized leptons are of significant interest for applications in materials physics, nuclear physics, laboratory astrophysics and particle physics. However, existing methods for generating polarized lepton sources typically require stringent experimental conditions, e.g., high-precision s…
[Phys. Rev. Applied] Published Wed Sep 09, 2026

Damping dynamics of the centroid oscillation of a relativistic laser pulse in a plasma channel

2026-09-09T10:00:00+00:00

Author(s): Yuhui Xia, Zhenan Wang, Ziyao Tang, Jianghao Hu, Xinyang Liu, Letian Liu, Laifu Man, Zhuo Pan, Di Wu, Jacob R. Pierce, Xueqing Yan, Chen Lin, and Xinlu Xu
The centroid oscillation of an offset laser pulse propagating in a preformed plasma channel is investigated through theoretical analysis and three-dimensional particle-in-cell simulations. For non-relativistic laser pulses, the mode leakage of a finite channel and the temporal walk-off between the f…
[Phys. Rev. Applied] Published Wed Sep 09, 2026

Rapid viscosity-tensor-inspired hydrodynamic cloak design under full Navier-Stokes equations enabled by physics-informed neural network

2026-09-08T10:00:00+00:00

Author(s): Yuanye Zhou, Badreddine Assouar, Zhaokun Wang, Yang Zhang, Siqi Ding, and Kai Zhou
Hydrodynamic cloak design aiming to suppress water flow disturbance by objects has become a popular research topic, with promising applications in drag reduction and stealth technology for marine engineering, bioengineering, and chemical engineering. Existing methods primarily utilize transformation…
[Phys. Rev. Applied] Published Tue Sep 08, 2026

Multifrequency Floquet engineering of magnon polaritons

L. Hackner, A. R. Myatt, W. Wustmann, and N. J. Lambert — 2026-09-08T10:00:00+00:00

Author(s): L. Hackner, A. R. Myatt, W. Wustmann, and N. J. Lambert
Floquet engineering of cavity magnon-polaritons by periodically modulating the magnon frequency has recently attracted much interest as a way to manipulate the energy spectrum of magnon-photon hybrid systems. However, modulating the frequency of magnons by a time-varying bias magnetic field can be c…
[Phys. Rev. Applied] Published Tue Sep 08, 2026

Hot-carrier distribution spectroscopy by transconductance in two-dimensional field-effect transistors

Katsunori Wakabayashi — 2026-09-08T10:00:00+00:00

Author(s): Katsunori Wakabayashi

The transconductance

g_{m} = d I_{D} / d V_{G}

of a field-effect transistor (FET) is conventionally read as a proxy for carrier density. We show that it is instead a spectroscopic probe of the carrier distribution: because

g_{m}

weights the spectral current

j (E)

by the gate-voltage derivative

\partial f (E) / \partial V_{G}

and integrates…

[Phys. Rev. Applied] Published Tue Sep 08, 2026

Obstacles to continuous quantum error correction via parity measurements

Anton Halaski and Christiane P. Koch — 2026-09-08T10:00:00+00:00

Author(s): Anton Halaski and Christiane P. Koch
Time-continuous quantum error correction, necessary to protect quantum information under time-dependent Hamiltonians, relies on weak continuous syndrome measurements. Implementing these measurements requires a continuous coupling among at least two qubits and a meter, a demanding requirement. We sho…
[Phys. Rev. Applied] Published Tue Sep 08, 2026

SOFI-based spatial superresolution in nanosensing with blinking emitters

Alexander Mikhalychev and Alex Ulyanenkov — 2026-09-04T10:00:00+00:00

Author(s): Alexander Mikhalychev and Alex Ulyanenkov
We propose a method of spatial resolution enhancement in metrology (thermometry, magnetometry, pH estimation, and similar methods) with blinking fluorescent nanosensors by combining sensing with super-resolution optical fluctuation imaging (SOFI). By utilizing the idea of quantum super-resolution im…
[Phys. Rev. Applied] Published Fri Sep 04, 2026

Systematic analysis of shielding properties of magnetically shielded rooms

Zhiyin Sun, Liyi Li, Allard Schnabel, Tianhao Liu, and Peter Fierlinger — 2026-09-04T10:00:00+00:00

Author(s): Zhiyin Sun, Liyi Li, Allard Schnabel, Tianhao Liu, and Peter Fierlinger
Enclosures made of highly permeable and highly conductive materials are used as passive shields to reduce the static magnetic field and magnetic disturbances for fundamental physics experiments and biomedical diagnostics. The two most important specifications of a magnetic shield are the shielding f…
[Phys. Rev. Applied] Published Fri Sep 04, 2026

Post-threshold synchronization in supersymmetric laser arrays

M. Alizadeh, Q. Zhong, S. Ozdemir, and R. El-Ganainy — 2026-09-04T10:00:00+00:00

Author(s): M. Alizadeh, Q. Zhong, S. Ozdemir, and R. El-Ganainy
We investigate the post-threshold emission characteristics of supersymmetric (SUSY) semiconductor laser arrays beyond the linear regime. In contrast to previous studies based primarily on linear analyses or simplified nonlinear descriptions, we employ a realistic class-B semiconductor laser model in…
[Phys. Rev. Applied] Published Fri Sep 04, 2026

Postselection strategies for continuous-variable quantum key distribution protocols based on error probability distribution

2026-09-04T10:00:00+00:00

Author(s): Jiayu Ma, Fan Xia, Dengke Qi, Long Xing, Ziyang Chen, Yongmei Sun, Song Yu, and Xiangyu Wang
Discrete-modulation continuous-variable quantum key distribution (DM-CVQKD) has attracted considerable interest due to its compatibility with coherent optical communication systems and low hardware complexity. In DM-CVQKD protocols, post-selection is widely employed as an effective technique to enha…
[Phys. Rev. Applied] Published Fri Sep 04, 2026

Optically induced thermal demagnetization and switching of antiferromagnetic domains in NiO and CoO thin films

2026-09-03T10:00:00+00:00

Author(s): Maciej Dąbrowski, Tong Wu, Connor R. J. Sait, Jia Xu, Paul S. Keatley, Yizheng Wu, Robert J. Hicken, and Olena Gomonay
We demonstrate all-optical manipulation of magnetic domains in NiO/Pt and CoO/Pt thin films with insulating antiferromagnetic layers. Using magneto-optical birefringence imaging, we show that even a single laser pulse can thermally demagnetize the antiferromagnet, leading to a random redistribution …
[Phys. Rev. Applied] Published Thu Sep 03, 2026

Simultaneous determination of local magnetic fields and sensor orientation with nitrogen-vacancy centers in nanodiamond

2026-09-03T10:00:00+00:00

Author(s): Yizhou Wang, Haochen Shen, Zhongyuan Liu, Yue Yu, Shengwang Du, Chong Zu, and Chuanwei Zhang
Nitrogen-vacancy (NV) centers in nanodiamonds have emerged as a promising quantum sensing platform for biomedical imaging applications, yet random orientations of individual particles present signi cant challenges in large-scale sensor calibration. In this study, we demonstrate a novel approach to s…
[Phys. Rev. Applied] Published Thu Sep 03, 2026

Fast-driving spectroscopy of current-phase relationships in individual superconducting junctions

2026-09-03T10:00:00+00:00

Author(s): Maxim Tjøtta, Devashish Shah, Kanishk Modi, Marco Valentini, Rubén Seoane Souto, Georgios Katsaros, and Jeroen Danon
Extracting the current–phase relationship (CPR) of a single superconducting junction is challenging in practice and traditionally involves embedding the junction in a larger superconducting circuit containing SQUIDs and/or resonators. Applying ac driving to the junction has proven to be a viable and…
[Phys. Rev. Applied] Published Thu Sep 03, 2026

Quantitative isolation of spin Hall magnetoresistance at antiferromagnetic insulator interfaces

2026-09-03T10:00:00+00:00

Author(s): Yufan Wang, Yi Huang, Jiarui Niu, Shuai Zhang, Mengdi Yin, Hongna Gu, Zeyi Zhu, Haotian Duan, Xiao Xiao, Lina Chen, Yongbing Xu, and Ronghua Liu
We investigated the competing mechanisms of spin Hall magnetoresistance (SMR) and ordinary magnetoresistance (OMR) in van der Waals A-type antiferromagnet CrPS₄/Pt heterostructures. By engineering the Pt thickness, we demonstrate a clear crossover from an SMR-dominated regime in thin (5 nm) Pt bilay…
[Phys. Rev. Applied] Published Thu Sep 03, 2026

Momentum-selective coupling-driven transport behavior in two-dimensional Janus multiferroic InCrS${}_{3}$

2026-09-02T10:00:00+00:00

Author(s): Kexin Song, Chun-Sheng Liu, Shaohui Yu, Xiaohong Zheng, Hua Hao, and Weiyang Wang

Two-dimensional (2D) multiferroic materials with polarization-tunable electronic properties provide unprece-dented opportunities for designing high-performance ferroelectric tunnel junctions (FTJs). In this work, we focus on InCrS

_{3}

, a 2D multiferroic derived from ferroelectric In

_{2}

_{3}

via Cr substitut…

[Phys. Rev. Applied] Published Wed Sep 02, 2026

Design and optimization of spin dynamics in germanium quantum dots: $g$-factor modulation, geometry-induced dephasing sweet spots, and phonon-induced relaxation

Ngoc Duong and Daryoosh Vashaee — 2026-09-02T10:00:00+00:00

Author(s): Ngoc Duong and Daryoosh Vashaee
Gate geometry and bias asymmetry can be used to engineer spin dynamics in gate-defined Ge hole quantum dots by reshaping the confinement potential and driving transitions between distinct confinement regimes. Using a realistic three-dimensional device model, we show that these transitions strongly m…
[Phys. Rev. Applied] Published Wed Sep 02, 2026

High-sensitivity vapor-cell quasi-dc atomic electric field sensor

Amy Damitz, George Burns, and Yuan-Yu Jau — 2026-09-02T10:00:00+00:00

Author(s): Amy Damitz, George Burns, and Yuan-Yu Jau

We report several technical approaches that significantly improve the performance of a vapor-cell atomic electrometer operating in the quasi-DC frequency domain (

≪

1 kHz). With a very small active volume of approximately 11 mm

^{3}

inside a 2$

2

2 c m

^3$ vapor cell, we demonstrated a noise floor for electri…

[Phys. Rev. Applied] Published Wed Sep 02, 2026

Gigahertz quantum spin Hall effect in nanoelectromechanical phononic crystals

2026-09-02T10:00:00+00:00

Author(s): Yue Jiang, Shizai Chu, Xiaoru Zhang, Qicheng Zhang, Vincent Kerler, Keji Lai, and A. T. Charlie Johnson
The quantum spin Hall (QSH) phase is a paradigmatic time-reversal-symmetric topological insulator, carrying a Z2 bulk invariant and counter-propagating helical edge channels protected by spin-momentum locking. Since bosonic systems lack the microscopic Kramers degeneracy of electrons, the QSH phase …
[Phys. Rev. Applied] Published Wed Sep 02, 2026

Magnetic landscape of Nb-Ti-N superconducting resonators under radio-frequency excitation

2026-09-02T10:00:00+00:00

Author(s): J. Baumgarten, N. Lejeune, L. Nulens, I. P. C. Cools, J. Van de Vondel, and A. V. Silhanek
Planar superconducting resonators are essential components in quantum circuits and highly sensitive sensors. However, their performance is often compromised by magnetic flux penetration, as the interaction of flux quanta and the induced radio-frequency (RF) currents in the superconducting thin film …
[Phys. Rev. Applied] Published Wed Sep 02, 2026

In situ differentiable complex-field calibration for high-fidelity Hamiltonian evaluation in spatial photonic Ising machines

2026-09-02T10:00:00+00:00

Author(s): Haijun Zhou, Maolin Wang, Qin Luo, Hengyang Li, Yu Xiao, Xiahui Tang, Yingxiong Qin, Lin Wu, and Gang Xu
Spatial photonic Ising machines (SPIMs) exploit free-space Fourier propagation to perform parallel optical computation of spin-spin couplings, providing a promising platform for large-scale combinatorial optimization. However, their fidelity is limited by intrinsic optical aberrations and nonuniform…
[Phys. Rev. Applied] Published Wed Sep 02, 2026

Tunable SQUID coupler for fluxonium qubits

2026-09-01T10:00:00+00:00

Author(s): Abhishek Chakraborty, Bibek Bhandari, D. Dominic Briseñ o-Colunga, Noah Stevenson, Zahra Pedramrazi, Chuan-Hong Liu, David I. Santiago, Irfan Siddiqi, Justin Dressel, and Andrew N. Jordan
Tunable couplers enable high-fidelity two-qubit gates leveraging high on/off coupling ratios and reduced crosstalk within a single design. We investigate a galvanically connected direct-current superconducting quantum interference device (dc SQUID) as a minimal tunable coupling element for fluxonium…
[Phys. Rev. Applied] Published Tue Sep 01, 2026

High-bandwidth coherence cloning using optical-phase-locking feedforward

Chen Jia, Zhen-Xing Hua, Yu-Xin Chao, and Meng Khoon Tey — 2026-09-01T10:00:00+00:00

Author(s): Chen Jia, Zhen-Xing Hua, Yu-Xin Chao, and Meng Khoon Tey
Ultra-narrow-linewidth lasers with suppressed high-frequency phase noise are critical for quantum control and precision metrology. While optical phase locking (OPL) is the standard technique for cloning the coherence of such sources, its effectiveness is often limited at high frequencies by feedback…
[Phys. Rev. Applied] Published Tue Sep 01, 2026

Microscopy of bioelectric potentials using electrochromism

2026-09-01T10:00:00+00:00

Author(s): Burhan Ahmed, Erica Liu, Lothar Maisenbacher, Pengwei Sun, Dana Griffith, Kenneth Nakasone, Ashwin Singh, Yuecheng Zhou, Bianxiao Cui, and Holger Müller
Studying the electrical signals generated by living cells is key to understanding numerous biological phenomena. Electrochromic optical recording (ECORE) uses the electrochromism exhibited by certain materials to noninvasively measure these signals in real time. In this work, we report on the develo…
[Phys. Rev. Applied] Published Tue Sep 01, 2026

Microscopic theory of the lower critical field in superconducting thin-film strips

Takayuki Kubo — 2026-08-31T10:00:00+00:00

Author(s): Takayuki Kubo
The lower critical field Bc1 of a narrow superconducting thin-film strip sets the thermodynamic scale for vortex-free operation in a perpendicular magnetic field. The standard Pearl–London estimate requires a phenomenological vortex-core cutoff, because the London theory does not resolve the core. W…
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Self-seeded x-ray free-electron laser with high spectral density and photon energy

2026-08-31T10:00:00+00:00

Author(s): Lu Cao, Tianyun Long, Winfried Decking, Marc Guetg, Vitali Kocharyan, Naresh Kujala, Christoph Lechner, Anders Madsen, Theophilos Maltezopoulos, Giovanni Perosa, Weilun Qin, Evgeni Saldin, Matthias Scholz, Svitozar Serkez, Andrei Trebushinin, Jiawei Yan, Shan Liu, and Gianluca Geloni
Hard X-ray experiments, such as high-resolution imaging and scattering of complex materials, increasingly demand pulses from X-ray free-electron lasers (XFELs) with high photon energy, high spectral density, and narrow bandwidth. Here, we report the demonstration of hard X-ray self seeding (HXRSS) a…
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Neural-network-based design and implementation of fast and robust quantum gates

2026-08-31T10:00:00+00:00

Author(s): Marko Kuzmanović, Ilya Moskalenko, Yu-Han Chang, Ognjen Stanisavljević, Christopher Warren, Emil Hogedal, Anuj Aggarwal, Irshad Ahmad, Janka Biznárová, Mamta Dahiya, Marcus Rommel, Andreas Nylander, Giovanna Tancredi, and Gheorghe Sorin Paraoanu
We present a continuous-time, neural-network-based approach to optimal control in quantum systems, with a focus on pulse engineering for quantum gates. Leveraging the framework of neural ordinary differential equations (Neural ODEs), we construct control fields as outputs of trainable neural network…
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Robust nonadiabatic holonomic gating in qutrits via inverse-engineered pulse shaping and error compensation

Jie Lu, Ji-Ze Han, Jie-Dong Huang, Yang Qian, Ying Yan, and Zhi-Guo Huang — 2026-08-31T10:00:00+00:00

Author(s): Jie Lu, Ji-Ze Han, Jie-Dong Huang, Yang Qian, Ying Yan, and Zhi-Guo Huang

Systematic Rabi-amplitude and detuning errors remain important sources of infidelity in high-fidelity quantum gates. We develop a robust pulse-engineering scheme for non-adiabatic holonomic quantum computing in a three-level

Λ

-type qutrit, combining inverse engineering with time-dependent perturbati…

[Phys. Rev. Applied] Published Mon Aug 31, 2026

Bridging fidelity gaps in the design of triply periodic minimal surfaces-based elastic metamaterials using neural networks

Yu-Tong Wang, Andrew Fanton, and Yun Jing — 2026-08-31T10:00:00+00:00

Author(s): Yu-Tong Wang, Andrew Fanton, and Yun Jing
This study addresses the persistent multi-fidelity gap between numerical simulations and experimental observations in the design of elastic metamaterials, specifically focusing on wave transmission spectra of the triply periodic minimal surface (TPMS) lattices. We propose the Dual Elastic Alignment …
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Hybrid quantum interferometer bridging Hong-Ou-Mandel and N00N-state interference

2026-08-31T10:00:00+00:00

Author(s): Zi-Qi Zeng, Samuel Corona-Aquino, Tao Xie, Bin Yin, Yan Guo, Yukun Song, Yun Meng, Kai Zou, Song Li, Xiaolong Hu, Alfred B. U’Ren, Roberto de J. León-Montiel, Chenglong You, Baihong Li, Dongzhou Wang, and Rui-Bo Jin
Hong-Ou-Mandel (HOM) interference offers robustness in high-noise environments due to its phase-insensitive nature, while N00N-state interference provides enhanced phase sensitivity for precision measurements in low-noise settings. However, their realizations have typically required separate experim…
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Asymptotic stability of laser-driven lightsails: Enhancement by optical dispersion engineering in gratings

2026-08-31T10:00:00+00:00

Author(s): Jadon Y. Lin, Liam van Ravenstein, C. Martijn de Sterke, Michael S. Wheatland, Alex Y. Song, and Boris T. Kuhlmey
Lightsails are promising spacecraft that can traverse interstellar distances within decades via radiation-pressure propulsion from high-power lasers. The envisioned missions crucially rely on the sail being confined within the propelling laser beam, requiring restoring and damping mechanisms for bot…
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Analytical framework for controlling antenna performance using near-zero-index metamaterials

Amir Jafargholi and Romain Fleury — 2026-08-31T10:00:00+00:00

Author(s): Amir Jafargholi and Romain Fleury
In the antenna community, there has always been a fundamental question: how can we control antenna behavior, e.g., resonant frequency, bandwidth, and mutual coupling in an array, solely by changing materials surrounding the radiating current? To answer this, we analyze the role of a magneto-dielectr…
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Modular and integrable cryogen-free dilution refrigerator

2026-08-31T10:00:00+00:00

Author(s): Xiang Guan, Pei Liu, De Ming Wang, Yong Jie Xie, Yu Qun Xu, Jie Fan, Zhong Qing Ji, Yi Rong Jin, and Haifeng Yu
Abstract: We have developed two modular dilution refrigerators with a cooling power on the order of 1 mW at 100 mK and 20 μW at 20 mK, and further carried out joint operation by integrating the two modular units. In the integrated configuration, the base temperatures of the mixing chamber cold plate…
[Phys. Rev. Applied] Published Mon Aug 31, 2026

Spectral side channels of wavelength-division multiplexer in quantum key distribution under laser damage

2026-08-28T10:00:00+00:00

Author(s): Binwu Gao, Junxuan Liu, Ekaterina Borisova, Hao Tan, Mingyang Zhong, Zihao Chen, Qingquan Peng, Weixu Shi, Anastasiya Ponosova, Vadim Makarov, and Anqi Huang
In the transmitter of a quantum key distribution (QKD) system, a wavelength-division multiplexer (WDM) is typically used to combine quantum and synchronization signals and is directly connected to the quantum channel. As a result, it becomes the first optical component exposed to laser-injection att…
[Phys. Rev. Applied] Published Fri Aug 28, 2026

Rf quantum capacitance parametric amplifier

2026-08-28T10:00:00+00:00

Author(s): A. El Kass, B Harlech-Jones, C. T. Jin, J. D. Watson, G. C. Gardner, S. Fallahi, M. J. Manfra, T. A. Ohki, and D. J. Reilly
We report an rf parametric amplifier that exploits the gate-tunable quantum capacitance of a semiconductor two dimensional electron gas (2DEG) at cryogenic temperatures. The prototype amplifier exhibits a gain ∼ 30 dB up to an input power of −66 dBm, and a noise temperature TN ∼ 2 K at ∼ 370 MHz whi…
[Phys. Rev. Applied] Published Fri Aug 28, 2026

Nanoscale wireframe SQUID on a cantilever by corner lithography

2026-08-28T10:00:00+00:00

Author(s): Thijs J. Roskamp, Tim Horstink, Melissa J. Goodwin, Erwin Berenschot, Edin Sarajilic, Roeland Huijink, Niels Tas, and Hans Hilgenkamp
We present the fabrication of nanoscale superconducting quantum interference devices (SQUIDs) at the apex of wireframe tips on self-aligned superconducting cantilever probes. The probes are made on silicon wafers using molding techniques in combination with corner lithography, which results in a nan…
[Phys. Rev. Applied] Published Fri Aug 28, 2026

Machine-learning-assisted tracking of magnetic objects using quantum diamond magnetometry

2026-08-27T10:00:00+00:00

Author(s): Fernando Meneses, Christopher T. -K. Lew, Anand Sivamalai, Andy Sayers, Brant C. Gibson, Andrew D. Greentree, Lloyd C. L. Hollenberg, and David A. Simpson
Remote magnetic sensing can be used to monitor the position of objects in real-time, enabling ground transport monitoring, underground infrastructure mapping and hazardous detection. However, magnetic signals are typically weak and complex, requiring sophisticated physical models to analyze them and…
[Phys. Rev. Applied] Published Thu Aug 27, 2026

Compressed qubit noise spectroscopy: Piecewise-linear modeling and Rademacher measurements

Kaixin Huang, Demitry Farfurnik, Dror Baron, and Yi-Kai Liu — 2026-08-26T10:00:00+00:00

Author(s): Kaixin Huang, Demitry Farfurnik, Dror Baron, and Yi-Kai Liu
Random pulse sequences are a powerful method for qubit noise spectroscopy, enabling efficient reconstruction of sparse noise spectra. Here, we advance this method in two complementary directions. First, we extend the method using a regularizer based on the total generalized variation (TGV) norm, in …
[Phys. Rev. Applied] Published Wed Aug 26, 2026

Circulators based on coupled quantum anomalous Hall insulators and resonators

2026-08-24T10:00:00+00:00

Author(s): Luis A. Martinez, Nick Du, Nicholas Materise, Sean O’Kelley, Xian Wu, Gang Qiu, Kang L. Wang, Gianpaolo P. Carosi, Tony Low, and Dong-Xia Qu
Integrated plasmonics is advancing rapidly, enabling a wide range of functionalities to be incorporated onto a single chip. Applications span information processing, computation, quantum sensing, and dark-matter detection. This progress has driven the development of integrated non-reciprocal devices…
[Phys. Rev. Applied] Published Mon Aug 24, 2026

Convex preoptimization for electromagnetic inverse design

Nathaniel Morrison, Xujia He, Siqi Zhai, and Eric Y. Ma — 2026-08-24T10:00:00+00:00

Author(s): Nathaniel Morrison, Xujia He, Siqi Zhai, and Eric Y. Ma
Photonic and microwave devices are foundational elements of both precision physics experiments and modern telecommunications and sensing technology. Electromagnetic inverse design intelligently searches for devices that optimally fulfill a particular task. However, most realistic design tasks are hi…
[Phys. Rev. Applied] Published Mon Aug 24, 2026

Dimensionality reduction for closed-loop quantum gate calibration

2026-08-24T10:00:00+00:00

Author(s): Emma Berger, Vivek Maurya, Z. M. McIntyre, Ken Xuan Wei, Holger Haas, and Daniel Puzzuoli
Numerical gate design typically makes use of high-dimensional parameterizations enabling sophisticated, highly expressive control pulses. Developing efficient experimental calibration methods for such gates is a long-standing challenge in quantum control, as on-device calibration requires the optimi…
[Phys. Rev. Applied] Published Mon Aug 24, 2026

Multivalued quantum encoding protocol based on the N-$V$ center in diamond

2026-08-24T10:00:00+00:00

Author(s): Yifan Zhang, Yanjie Liu, Yue Fu, Minghui Wu, Yikun Mei, Yeliang Wang, Zhen Gao, and Bo Zhang

Multi-valued quantum encoding maps a classical alphabet of

M > 2

symbols onto multiple prescribed states. Here, we experimentally demonstrate multi-valued quantum encoding in an effective two-level subspace of the electron spin of a nitrogen-vacancy center in diamond at room temperature. Classical …

[Phys. Rev. Applied] Published Mon Aug 24, 2026

Spectral dynamics and spin signatures of a mechanically isolated quantum emitter in $h$-BN

2026-08-24T10:00:00+00:00

Author(s): Sajedeh Shahbazi, Alexander Pachl, Kathrin Schwer, Patrick Maier, and Alexander Kubanek
Mechanically isolated defect centers in hexagonal boron nitride are promising coherent quantum emitters, yet spectral instabilities persist, and their spin-related nature remains unclear. Here we investigate a single mechanically isolated quantum emitter in hBN integrated onto a coplanar waveguide. …
[Phys. Rev. Applied] Published Mon Aug 24, 2026

Simple and compact ytterbium magneto-optical trap

2026-08-21T10:00:00+00:00

Author(s): Benjamin White, Rachel F. Offer, Ashby P. Hilton, Elizaveta Klantsataya, Christopher J. Billington, Nicolas Bourbeau Hébert, Montanna Nelligan, and Andre N. Luiten

We present a low Size, Weight and Power (SWaP), low-complexity, ytterbium magneto-optical trap (MOT). We demonstrate trapping of

1.4 \times 10^{6}

^{171}

Yb atoms on the

|^{1} S_{0}, F = 1 / 2 ⟩ \leftrightarrow |^{1} P_{1}, F' = 3 / 2 ⟩

transition directly from a hot thermal beam. We explore the effect of trap detuning and oven temperature on trap number…

[Phys. Rev. Applied] Published Fri Aug 21, 2026

Spectrally reconfigurable tin-vacancy centers for remote two-photon interference

2026-08-21T10:00:00+00:00

Author(s): Vladislav Bushmakin, Oliver von Berg, Colin Sauerzapf, Sreehari Jayaram, Jonathan Enßlin, Tom Jäger, Andrej Denisenko, Ilja Gerhardt, Vadim Vorobyov, Di Liu, and Jörg Wrachtrup

Scalable quantum networks rely on optical links between long-lived qubits to distribute entanglement. Tin-vacancy (SnV

^{-}

) centers in diamond combine long spin coherence at liquid-helium temperatures with highly coherent, spin-dependent optical transitions, making them promising network qubits. Connec…

[Phys. Rev. Applied] Published Fri Aug 21, 2026

Laser-control switch for electron correlation in double ionization: Toward application-specific pathway selection

Xuan Luo, Yugang Yang, Liguang Jiao, Aihua Liu, and Xueshen Liu — 2026-08-20T10:00:00+00:00

Author(s): Xuan Luo, Yugang Yang, Liguang Jiao, Aihua Liu, and Xueshen Liu
Controlling correlated electron dynamics is a central challenge in ultrafast science, with implications for the development of coherent light sources and quantum information technologies. Traditional methods for manipulating strong-field ionization processes often rely on complex laser fields, limit…
[Phys. Rev. Applied] Published Thu Aug 20, 2026

High-fidelity quantum readout processing via an embedded SNAIL amplifier

Leon Bello, Boris Mesits, Michael Hatridge, and Hakan E. Türeci — 2026-08-19T10:00:00+00:00

Author(s): Leon Bello, Boris Mesits, Michael Hatridge, and Hakan E. Türeci
Scalable, high-fidelity quantum-state readout remains a central challenge in the development of large-scale superconducting quantum processors. Conventional dispersive readout architectures depend on bulky isolators and external amplifiers, introducing significant hardware overhead and limiting oppo…
[Phys. Rev. Applied] Published Wed Aug 19, 2026

Mitigation of magnetic flux trapping in superconducting electronics using moats

2026-08-19T10:00:00+00:00

Author(s): Rohan T. Kapur, Sergey K. Tolpygo, Alex Wynn, Pauli Kehayias, Adam A. Libson, Collin N. Muniz, Michael J. Gold, Justin L. Mallek, Danielle A. Braje, and Jennifer M. Schloss
Magnetic flux (vortex) trapping remains a major obstacle to very large scale integration in superconducting electronics. Moats — etched regions in circuit layers placed in ground planes and around critical circuitry — offer a simple passive approach to sequester flux. Here, we systematically examine…
[Phys. Rev. Applied] Published Wed Aug 19, 2026

High-quality single photons from cavity-enhanced biexciton-to-exciton transition

2026-08-18T10:00:00+00:00

Author(s): Nils Heinisch, Francesco Salusti, Mark R. Hogg, Timon L. Baltisberger, Malwina A. Marczak, Sascha R. Valentin, Arne Ludwig, Klaus D. Jöns, Richard J. Warburton, and Stefan Schumacher
Resonant laser excitation of a two-level system with subsequent single-photon emission can be used to generate single photons with high indistinguishability or Hong-Ou-Mandel (HOM) visibility. However, spectral overlap between excitation laser and emitted photons generally poses significant challeng…
[Phys. Rev. Applied] Published Tue Aug 18, 2026

Four-dimensional imaging using a one-dimensional transducer array combining photoacoustic signals with ultrasonic timecoding

2026-08-17T10:00:00+00:00

Author(s): Yingjie Feng, Simin Wang, Yang Liu, Qiuqin Mao, Tianxiang Zuo, Yifan Yang, Chao Tao, and Xiaojun Liu
Photoacoustic imaging (PAI) enables high optical contrast at ultrasonic imaging depths, however, real-time volumetric imaging remains challenging due to the complexity of two-dimensional arrays or the slow mechanical scanning of one-dimensional array. In this study, we propose a strategy for scan-fr…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Generation of perfect spatiotemporal acoustic vortices

Shuai Liu, Feng-Zhuang Liu, Hao Ge, Ming-Hui Lu, and Yan-Feng Chen — 2026-08-17T10:00:00+00:00

Author(s): Shuai Liu, Feng-Zhuang Liu, Hao Ge, Ming-Hui Lu, and Yan-Feng Chen
Spatiotemporal (ST) vortices carrying transverse orbital angular momentum have attracted growing interest in both optics and acoustics. However, despite diverse generation schemes, a fundamental limitation persists: the vortex radius increases with the topological charge, leading to size mismatch th…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

In situ nondestructive phase-boundary resolution in metallic materials

2026-08-17T10:00:00+00:00

Author(s): Jiachen Zhang, Takamasa Hirai, Pukun Tan, Ryo Iguchi, Fuhua Zhang, Xianzhe Chen, Cheng Song, Zhiyang Wei, Dazhi Hou, and Ken-ichi Uchida
Phase boundary, the interface between neighboring physical phases in matter, hosts various emergent novel phenomena and has been a pivotal subject of research interest for decades. Conventional techniques for the spatial resolving of phase boundaries rely on the interaction between the sample and ce…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Phonon decoherence produced by two-level tunneling states

2026-08-17T10:00:00+00:00

Author(s): Ryan O. Behunin, Taylor Ray, Dylan Chapman, Andrew J. Shepherd, Yizhi Luo, and Peter T. Rakich
Phonon modes within pristine crystalline resonators now routinely reach the quantum ground state. Such systems are attractive for quantum information science applications, as advanced fabrication and processing can enable relatively long quantum coherence times, and precision control can be realized…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Noise-resilient phase detection enabled via nonlinear non-Hermitian electronics

Yan-qiang Ma, An Chen, Yi-fei Xia, Jing Yang, Bin Liang, and Jian-chun Cheng — 2026-08-17T10:00:00+00:00

Author(s): Yan-qiang Ma, An Chen, Yi-fei Xia, Jing Yang, Bin Liang, and Jian-chun Cheng
Maintaining phase consistency under noisy conditions is a key issue in high-fidelity signal transmission. Traditional single-threshold phase detection methods rely on history-independent polarity discrimination, rendering them prone to waveform distortion. Non-Hermitian systems, although promising f…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Nonideal absorbers in hot-carrier and hot-absorber solar cells: Losses and heat recycling

Inés Durán, Simon Svatek, Irene Artacho, Elisa Antolín, and Antonio Martí — 2026-08-17T10:00:00+00:00

Author(s): Inés Durán, Simon Svatek, Irene Artacho, Elisa Antolín, and Antonio Martí
The hot carrier solar cell exhibits a photovoltaic conversion efficiency limit of 85.4%. Among the idealizations necessary to achieve this efficiency, it has traditionally been considered essential that the electrons absorbing sunlight do not end up transferring the captured energy to the crystal la…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Transverse relaxation time–aware qubit-mapping algorithm for noisy intermediate-scale quantum devices

2026-08-17T10:00:00+00:00

Author(s): Yifei Huang, Pascal Jahan Elahi, Ugo Varetto, Kan He, Jinchuan Hou, and Shusen Liu
Noisy intermediate-scale quantum (NISQ) devices impose dual challenges on quantum circuit execution: limited qubit connectivity requires extensive SWAP-gate routing, while time-dependent decoherence progressively degrades quantum information. Existing qubit mapping algorithms optimize for hardware t…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Reconfigurable circuit for mode-tunable topological quantum structured light

2026-08-17T10:00:00+00:00

Author(s): Pedro Ornelas, Tatjana Kleine, André G. de Oliveira, Carmelo Rosales-Guzmán, Andrew Forbes, and Isaac Nape
Structured light in the quantum regime has garnered considerable attention due to the opportunities it offers when mixing light’s internal degrees of freedom, for high-dimensional and multi-dimensional quantum states of light. A popular example is to harness polarisation and spatial entangled photon…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Monolithic segmented three-dimensional ion trap for quantum technology applications

2026-08-17T10:00:00+00:00

Author(s): Abhishek Menon, Michael Straus, George Tomaras, Liam Jeanette, April X. Sheffield, Devon Valdez, Yuanheng Xie, Visal So, De Luo, Midhuna Duraisamy Suganthi, Mark Dugan, Philippe Bado, Norbert M. Linke, Guido Pagano, and Roman Zhuravel
Monolithic three-dimensional (3D) Paul traps combine the high-precision microfabrication of two-dimensional (2D) chip traps with the deep trapping potentials and low heating rates characteristic of macroscopic 3D Paul traps, which are typically machined by traditional means and mechanically assemble…
[Phys. Rev. Applied] Published Mon Aug 17, 2026

Simultaneous detection, demodulation, and angle-of-arrival determination of communication signals using a dual-ladder Rydberg receiver

2026-08-14T10:00:00+00:00

Author(s): Stone B. Oliver, Samuel Berweger, Eugeniy E. Mikhailov, Dixith Manchaiah, Nikunjkumar Prajapati, Christopher L. Holloway, and Matthew T. Simons
In a typical Rydberg mixer, modulated communication signals are detected using a radio frequency (RF) heterodyne technique. The mixer outputs an intermediate frequency (IF) which must be filtered and mixed down to baseband. In this work, we apply an RF-homodyne technique to simultaneously demonstrat…
[Phys. Rev. Applied] Published Fri Aug 14, 2026

Superconducting-qubit decoherence correlated with detected radiation events

2026-08-13T10:00:00+00:00

Author(s): Alessandro R. Castelli, Kristin M. Beck, Loren D. H. Alegria, Luis A. Martinez, Kevin R. Chaves, Sean R. O’Kelley, Nicholas Materise, Jonathan L. Dubois, and Yaniv J. Rosen
Most quantum error correction (QEC) protocols for superconducting qubits assume spatially and temporally uncorrelated decoherence events; however, recent evidence suggests that cosmic radiation induces spatially correlated errors. We present a platform that sandwiches a superconducting transmon qubi…
[Phys. Rev. Applied] Published Thu Aug 13, 2026

Frequency collisions in parametrically modulated superconducting circuits

Zhuang Ma, Peng Zhao, Xinsheng Tan, and Yang Yu — 2026-08-12T10:00:00+00:00

Author(s): Zhuang Ma, Peng Zhao, Xinsheng Tan, and Yang Yu
Superconducting circuits are a leading platform for scalable quantum computing, where parametric modulation is a widely used technique for implementing high-fidelity multi-qubit operations. A critical challenge, however, is that this modulation can induce a dense landscape of parasitic couplings, le…
[Phys. Rev. Applied] Published Wed Aug 12, 2026

Optimization of Si/Si-Ge heterostructures for large and robust valley splitting in silicon qubits

2026-08-12T10:00:00+00:00

Author(s): Abel Thayil, Lasse Ermoneit, Lars R. Schreiber, Thomas Koprucki, and Markus Kantner
Small and device-dependent valley splittings remain a key challenge for electron spin qubits in silicon (Si), directly limiting qubit fidelity, device uniformity, and the scalability of Si-based quantum processors. In silicon–germanium (SiGe) heterostructures, this problem can be addressed through e…
[Phys. Rev. Applied] Published Wed Aug 12, 2026

Rate-limited nonradiative recombination at a single point defect revealed by time-resolved cathodoluminescence

2026-08-11T10:00:00+00:00

Author(s): Thomas F. K. Weatherley, Gunnar Kusch, Jean-François Carlin, Raphaël Butté, Rachel A. Oliver, and Nicolas Grandjean
Nonradiative carrier recombination at point defects (PDs) can severely limit the efficiency of semiconductor optoelectronic devices. However, such nonradiative PDs are difficult to study directly because they are atomic-scale, do not emit localized luminescence, and are typically buried deep in a se…
[Phys. Rev. Applied] Published Tue Aug 11, 2026

Multislice hollow ptychography for simultaneous atomic-layer-resolved three-dimensional structural imaging and spectroscopy

Yu Lei and Peng Wang — 2026-08-10T10:00:00+00:00

Author(s): Yu Lei and Peng Wang
Electron–matter interactions produce elastic and inelastic scattering, forming the basis for imaging and spectroscopy in electron microscopy. However, integrating electron energy-loss spectroscopy (EELS) with 4D-STEM and ptychography remains challenging due to detector geometry conflicts. Hollow pty…
[Phys. Rev. Applied] Published Mon Aug 10, 2026

Nonideal subthreshold swing in aligned carbon nanotube transistors due to variable-occupancy discrete charge traps

2026-08-06T10:00:00+00:00

Author(s): Saurabh S. Sawant, Teo Lara, François Léonard, Zhi (Jackie) Yao, and Andrew Nonaka
Carbon nanotube transistors have been experimentally demonstrated to reach performance comparable and even surpassing that of silicon transistors. Further improvement requires addressing non-idealities arising from device fabrication that impact performance and reproducibility. One performance metri…
[Phys. Rev. Applied] Published Thu Aug 06, 2026

Disorder-independent hole-spin manipulation by hopping

2026-08-05T10:00:00+00:00

Author(s): Biel Martinez, Ana Sempere-Sanchis, José C. Abadillo-Uriel, and Yann-Michel Niquet
Spin manipulation by hopping has recently emerged as a promising strategy to control hole spins in quantum dots using exclusively baseband control, thereby mitigating power dissipation and highfrequency management constraints in large-scale architectures. Unlike conventional approaches such as elect…
[Phys. Rev. Applied] Published Wed Aug 05, 2026

Single-photon-boosted type-I fusion gates

A. A. Melkozerov, S. S. Straupe, and M. Yu. Saygin — 2026-07-30T10:00:00+00:00

Author(s): A. A. Melkozerov, S. S. Straupe, and M. Yu. Saygin

Fusion measurements are a key primitive for linear-optical quantum computing and quantum networks. Type-I and type-II fusion gates are widely used to combine small entangled resource states into larger photonic states, but without ancillary resources their success probability is limited to

1 / 2

. Exis…

[Phys. Rev. Applied] Published Thu Jul 30, 2026

High-fidelity transmon reset with a multimode acoustic resonator

Andraž Omahen, Simon Storz, Igor Kladarić, and Yiwen Chu — 2026-07-29T10:00:00+00:00

Author(s): Andraž Omahen, Simon Storz, Igor Kladarić, and Yiwen Chu
Achieving sufficiently low residual excited-state populations remains a key challenge in superconducting quantum circuits, particularly for protocols operating close to noise limits or requiring repeated qubit initialization. Existing protocols primarily address this challenge through sophisticated …
[Phys. Rev. Applied] Published Wed Jul 29, 2026

Empirical extension of the ridge regression theorem to nonlinear least-squares estimation with application to myelin water mapping using magnetic resonance imaging

2026-07-29T10:00:00+00:00

Author(s): Griffin S. Hampton, Ryan Neff, Jeffrey Han, Aditee Prabhutendolkar, Zezheng Song, Mustapha Bouhrara, Radu Balan, and Richard G. Spencer
Purpose: Parameter estimation from biexponential models is a notoriously ill-posed problem, often yielding highly inaccurate estimates that are strongly influenced by noise. We present a simple but nonconventional approach to regularizing nonlinear least-squares (NLLS) parameter estimation and apply…
[Phys. Rev. Applied] Published Wed Jul 29, 2026

Roles of quadratic and biquadratic couplings in the spin-wave modes of Co-Fe/Ru/Ni-Fe artificial spin ices

2026-07-29T10:00:00+00:00

Author(s): Riccardo Fornari, Mohammad Tomal Hossain, Raffaele Silvani, Vinayak Shantaram Bhat, Rawnak Sultana, M. Benjamin Jungfleisch, and Gianluca Gubbiotti
We investigate the interplay between quadratic and biquadratic exchange coupling in an exchange-coupled CoFe/Ru/NiFe synthetic ferrimagnetic structure and compare its behavior to that of the same trilayer, patterned into an artificial spin lattice (ASI). The static and dynamic properties are investi…
[Phys. Rev. Applied] Published Wed Jul 29, 2026

Time-resolved observation of conversion of spin and orbital currents to charge currents in spintronic and orbitronic terahertz radiation emitters

Basem Y. Shahriar and Abdulhakem Y. Elezzabi — 2026-07-24T10:00:00+00:00

Author(s): Basem Y. Shahriar and Abdulhakem Y. Elezzabi
The conversion of ultrafast spin and orbital currents into charge currents underpins the generation of terahertz (THz) radiation in magnetic multilayers, yet the fundamental timescales of these processes remain largely unexplored. Here, we directly measure the absolute onset times from femtosecond l…
[Phys. Rev. Applied] Published Fri Jul 24, 2026

Electrically and optically active charge carrier traps in silicon-doped few-layer GaSe

2026-07-23T10:00:00+00:00

Author(s): M. Bissolo, R. Li, M. Ogura, Z. Sofer, S. Polesya, D. Han, A. W. Holleitner, C. Kastl, G. Koblmüller, H. Ebert, E. Zallo, and J. J. Finley
Understanding defects in atomically thin van der Waals (vdW) semiconductors is essential for advancing their use in next-generation optoelectronic and photovoltaic devices. Here, we apply a combination of various impedance spectroscopy techniques to two-dimensional (2D) vdW GaSe doped with silicon (…
[Phys. Rev. Applied] Published Thu Jul 23, 2026

Composition-dependent $k⋅p$ band parameters for wurtzite (Al,Ga)N alloys from density functional theory

Amit Kumar Singh, Alvaro Gomez-Iglesias, and Stefan Schulz — 2026-07-22T10:00:00+00:00

Author(s): Amit Kumar Singh, Alvaro Gomez-Iglesias, and Stefan Schulz
Ultraviolet light emitters based on the semiconductor alloy aluminium gallium nitride, (Al,Ga)N, have attracted significant interest in recent years due to their potential for optoelectronic devices. To guide the design of such devices with improved efficiencies, theoretical frameworks based on so-c…
[Phys. Rev. Applied] Published Wed Jul 22, 2026

Integration architecture for a pocket-sized quantum vector magnetometer using spin defects in silicon carbide

Andreas Gottscholl, Corey J. Cochrane, and Hannes Kraus — 2026-07-21T10:00:00+00:00

Author(s): Andreas Gottscholl, Corey J. Cochrane, and Hannes Kraus

We present a miniaturized, modular vector magnetometer based on silicon vacancy (

V_{S i}^{-}

) centers in 4H-SiC. While NV-diamond magnetometers can offer high sensitivity, spacecraft integration is often complicated by their requirement for disruptive, mT-scale bias fields. Our SiC architecture instead ena…

[Phys. Rev. Applied] Published Tue Jul 21, 2026

Experimental signatures of a $\stackrel{̂}{Z}\stackrel{̂}{X}$ beam-splitter interaction between Kerr-cat and transmon qubits

2026-07-21T10:00:00+00:00

Author(s): Josiah Cochran, Haley M. Cole, Hebah Goderya, Zhuoqun Hao, Yao-Chun Chang, Theo Shaw, Aikaterini Kargioti, and Shyam Shankar
Quantum error correction (QEC) requires ancilla qubits to extract error syndromes from data qubits which store quantum information. However, ancilla errors can propagate back to the data qubits, introducing additional errors and limiting fault-tolerance. In superconducting quantum circuits, Kerr-cat…
[Phys. Rev. Applied] Published Tue Jul 21, 2026

Measurement-induced state transitions across the fluxonium qubit landscape

Alex A. Chapple, Boris M. Varbanov, Alexander McDonald, and Alexandre Blais — 2026-07-20T10:00:00+00:00

Author(s): Alex A. Chapple, Boris M. Varbanov, Alexander McDonald, and Alexandre Blais
Understanding the mechanisms that limit high-fidelity readout in circuit quantum electrodynamics is essential for its optimization. Multi-photon resonances are understood to be a limiting factor, causing population transfer from the computational states to higher-energy states under drive. This effe…
[Phys. Rev. Applied] Published Mon Jul 20, 2026

Adaptive variation-resilient random-number generator for embedded encryption

2026-07-14T10:00:00+00:00

Author(s): Furqan Zahoor, Ibrahim A. Albulushi, Saleh Bunaiyan, Anupam Chattopadhyay, Hesham ElSawy, and Feras Al-Dirini
With a growing interest in securing user data within the internet-of-things (IoT), embedded encryption has become of paramount importance, requiring light-weight high-quality Random Number Generators (RNGs). Emerging stochastic device technologies produce random numbers from stochastic physical proc…
[Phys. Rev. Applied] Published Tue Jul 14, 2026

Gain-momentum locking in chiral-gain media

João C. Serra, Nader Engheta, and Mário G. Silveirinha — 2026-07-14T10:00:00+00:00

Author(s): João C. Serra, Nader Engheta, and Mário G. Silveirinha
Conventional optical materials are characterized by either a dissipative response, which results in polarization-independent absorption, or by a gain response that leads to wave amplification. In this work, we study a peculiar class of materials with chiral-gain properties, where gain selectively am…
[Phys. Rev. Applied] Published Tue Jul 14, 2026