Spectral heat kernel/zeta function regularization procedures are employed in this paper to control the divergences arising from vacuum fluctuations of Bogomolnyi-Prasad-Sommerfield vortices in the Abelian Higgs model. Zero modes of vortex fluctuations are the source of difficulties appearing when th…

[Phys. Rev. D 94, 045008] Published Wed Aug 10, 2016

We study various supersymmetric renormalization group (RG) flows of $N=3$ Chern-Simons-Matter theory in three dimensions by using four-dimensional $N=3$ gauged supergravity coupled to eight vector multiplets with $SO(3)\times SU(3)$ gauge group. The ${\mathrm{AdS}}_4$ critical point preserving the full $SO(3)\times SU(3)$ provides a…

[Phys. Rev. D 94, 045006] Published Mon Aug 08, 2016

We consider the Nekrasov-Shatashvili limit of the five-dimensional (5D) superconformal index and propose a novel prescription for selecting the finite contributions. Applying the latter to various examples of U(1) theories, we find that the 5D Nekrasov-Shatashvili index can be reproduced using recen…

[Phys. Rev. D 94, 045007] Published Mon Aug 08, 2016

We provide a gauge-covariant decomposition of the Yang-Mills field with the exceptional gauge group $G(2)$, which extends the field decomposition proposed by Cho, Duan-Ge, and Faddeev-Niemi for the $SU(N)$ Yang-Mills field. As an application of the decomposition, we derive a new expression of the non-Ab…

[Phys. Rev. D 94, 045004] Published Fri Aug 05, 2016

Holographic models of QCD, collectively known as anti-de Sitter/QCD, have been proven useful in deriving several properties of hadrons. One particular feature well reproduced by such models is the Regge trajectories, both for mesons and glueballs. We focus on scalar and tensor glueballs and derive a…

[Phys. Rev. D 94, 045005] Published Fri Aug 05, 2016

We present a generalized theoretical framework for dealing with the important issue of dynamical mass generation in Yang-Mills theories, and, in particular, with the infrared finiteness of the gluon propagators, observed in a multitude of recent lattice simulations. Our analysis is manifestly gauge …

[Phys. Rev. D 94, 045002] Published Wed Aug 03, 2016

In this paper we study a ($1+1$)-dimensional version of the famous Nambu–Jona-Lasinio model of quantum chromodynamics (QCD2) both at zero and at finite baryon density. We use nonperturbative techniques (non-Abelian bosonization and the truncated conformal spectrum approach). When the baryon chemical p…

[Phys. Rev. D 94, 045003] Published Wed Aug 03, 2016

The effective average action (EAA) is a scale-dependent effective action where a scale $k$ is introduced via an infrared regulator. The $k$ dependence of the EAA is governed by an exact flow equation to which one associates a boundary condition at a scale $\mu$. We show that the $\mu$ dependence of the EAA is c…

[Phys. Rev. D 94, 045001] Published Mon Aug 01, 2016

We evaluate quantum effects due to a two-component Dirac field in $2+1$ spacetime dimensions, coupled to domain-wall-like defects with a smooth shape. We show that these effects induce nontrivial contributions to the (shape-dependent) energy of the domain walls. For a single defect, we study the diver…

[Phys. Rev. D 94, 025038] Published Fri Jul 29, 2016

Continuing the work of Honda [Phys. Rev. Lett. 116, 211601 (2016)], we study the perturbative series in general 3d $\mathcal{N}=2$ supersymmetric Chern-Simons matter theory with $U(1{)}_R$ symmetry, which is given by a power series expansion of inverse Chern-Simons levels. We find that the perturbative series is usu…

[Phys. Rev. D 94, 025039] Published Fri Jul 29, 2016

We investigate the random motion of a mirror in ($1+1$)-dimensions that is immersed in a thermal bath of massless scalar particles which are interacting with the mirror through a boundary condition. Imposing the Dirichlet or the Neumann boundary conditions on the moving mirror, we evaluate the mean ra…

[Phys. Rev. D 94, 025040] Published Fri Jul 29, 2016

Spontaneous chiral symmetry breaking in three-dimensional ($d=3$) quantum electrodynamics is understood as annihilation of an infrared-stable fixed point that describes the large-N conformal phase by another unstable fixed point at a critical number of fermions $N=N_c$. We discuss the root of universalit…

[Phys. Rev. D 94, 025036] Published Thu Jul 28, 2016

We analyze the mechanism of condensation of orientational moduli [as introduced in Phys. Rev. D 87, 025025 (2013)] on multi-Skyrmionic configurations of the four-dimensional Skyrme model. The present analysis reveals interesting novel features. First of all, the orientational moduli tend to decrease…

[Phys. Rev. D 94, 025037] Published Thu Jul 28, 2016

The low-energy dynamics of relativistic continuous media is given by a shift-symmetric effective theory of four scalar fields. These scalars describe the embedding in spacetime of the medium and play the role of Stückelberg fields for spontaneously broken spatial and time translations. Perfect fluid…

[Phys. Rev. D 94, 025034] Published Wed Jul 27, 2016

We present a local setup for the recently introduced BRST-invariant formulation of Yang-Mills theories for linear covariant gauges that takes into account the existence of gauge copies à la Gribov and Zwanziger. Through the convenient use of auxiliary fields, including one of the Stueckelberg type, …

[Phys. Rev. D 94, 025035] Published Wed Jul 27, 2016

The $\mathbb{C}{P}^N$ extended Skyrme-Faddeev model possesses planar soliton solutions. We consider quantum aspects of the solutions applying collective coordinate quantization in regime of rigid body approximation. In order to discuss statistical properties of the solutions we include an Abelian Chern-Simons ter…

[Phys. Rev. D 94, 025032] Published Tue Jul 26, 2016

We find new higher derivative models describing a parity doublet of massive spin-3 modes in $D=2+1$ dimensions. One of them is of fourth order in derivatives while the other one is of sixth order. They are complete, in the sense that they contain the auxiliary scalar field required to remove spurious …

[Phys. Rev. D 94, 025033] Published Tue Jul 26, 2016

In this work we analyze the validity of Lifshitz’s theory for the case of nonequilibrium scenarios from a full quantum dynamical approach. We show that Lifshitz’s framework for the study of the Casimir pressure is the result of considering the long-time regime (or steady state) of a well-defined ful…

[Phys. Rev. D 94, 025029] Published Mon Jul 25, 2016

In this paper, we discuss two features of the noncommutative geometry and spectral action approach to the Standard Model: the fact that the model is inherently Euclidean, and that it requires a quadrupling of the fermionic degrees of freedom. We show how the two issues are intimately related. We giv…

[Phys. Rev. D 94, 025030] Published Fri Jul 22, 2016

The $CPT$-odd and Lorentz-violating Carroll-Field-Jackiw (CFJ) modification of electrodynamics is discussed, and we study its effects on the energy spectrum of hydrogen, as well as in the generation of a momentum-dependent electric dipole moment for charged leptons. We also briefly comment on the poss…

[Phys. Rev. D 94, 025031] Published Fri Jul 22, 2016

We apply pseudospectral methods to integrate functional flow equations with high accuracy, extending earlier work on functional fixed point equations [J. Borchardt and B. Knorr, Phys. Rev. D 91, 105011 (2015)]. The advantages of our method are illustrated with the help of two classes of models: firs…

[Phys. Rev. D 94, 025027] Published Wed Jul 20, 2016

We reconsider perturbative unitarity in quantum field theory and upgrade several arguments and results. The minimum assumptions that lead to the largest time equation, the cutting equations and the unitarity equation are identified. Using this knowledge and a special gauge, we give a new, simpler pr…

[Phys. Rev. D 94, 025028] Published Wed Jul 20, 2016

Calculations indicate that neutrino emission from a supernova could be detected on Earth, possibly revealing how the star explodes.

[Phys. Rev. D 94, 025026] Published Tue Jul 19, 2016

In this paper, we study the RG flow in the nonlinear sigma models obtained from a 2D $\mathcal{N}=(0,2)$ supersymmetric QCD. The sigma model is parametrized by a single Kahler modulus. We determine its exact nonperturbative beta function using holomorphy, triality and the knowledge of the infrared fixed point.

[Phys. Rev. D 94, 025024] Published Fri Jul 15, 2016

We consider six-dimensional supergravity with Abelian bulk flux compactified on an orbifold. The effective low-energy action can be expressed in terms of $\mathcal{N}=1$ chiral moduli superfields with a gauged shift symmetry. The $D$-term potential contains two Fayet-Iliopoulos terms which are induced by the flux…

[Phys. Rev. D 94, 025025] Published Fri Jul 15, 2016

Using numerical and analytic methods, we study quantum tunneling from a Minkowski false vacuum to an anti-de Sitter true vacuum. Scanning the parameter space of theories with quartic and nonpolynomial potentials, we find that for any given potential tunneling is completely quenched if gravitational …

[Phys. Rev. D 94, 025023] Published Thu Jul 14, 2016

We consider phase transitions and their contributions to vacuum energy in the manifestly local theory of vacuum energy sequestering. We demonstrate that the absence of instabilities imposes constraints on the couplings of gravitating and nongravitating sectors, which can be satisfied in a large clas…

[Phys. Rev. D 94, 025022] Published Wed Jul 13, 2016

It is well known that perturbative pressure calculations show poor convergence. Calculations using a two-particle irreducible (2PI) effective action show improved convergence at the 3 loop level, but no calculations have been done at 4 loops. We consider the 2PI effective theory for a symmetric scal…

[Phys. Rev. D 94, 025018] Published Mon Jul 11, 2016

In this article we investigate whether a theory based on a classical Lagrangian for the minimal Standard Model Extension (SME) can be quantized such that the result is equal to the corresponding low-energy Hamilton operator obtained from the field-theory description. This analysis is carried out for…

[Phys. Rev. D 94, 025019] Published Mon Jul 11, 2016

We develop chiral perturbation theory for chirally broken theories with fermions in two different representations of the gauge group. Any such theory has a nonanomalous singlet $U(1{)}_A$ symmetry, yielding an additional Nambu-Goldstone boson when spontaneously broken. We calculate the next-to-leading or…

[Phys. Rev. D 94, 025020] Published Mon Jul 11, 2016

We explicitly compute the one-loop exact beta function for a nonlocal extension of the standard gauge theory, in particular, Yang-Mills and QED. The theory, made of a weakly nonlocal kinetic term and a local potential of the gauge field, is unitary (ghost-free) and perturbatively super-renormalizabl…

[Phys. Rev. D 94, 025021] Published Mon Jul 11, 2016

We construct a class of Abelian and non-Abelian local gauge theories that consist only of matter fields of fermions. The Lagrangian is local and does not contain an auxiliary vector field nor a subsidiary condition on the matter fields. It does not involve an extra dimension nor supersymmetry. This …

[Phys. Rev. D 94, 025010] Published Fri Jul 08, 2016

A way to describe the hydrodynamics of the quark-gluon plasma using a Dirac-Born-Infeld (DBI) action is proposed, based on the model found by Heisenberg for high energy scattering of nucleons. The expanding plasma is described as a shockwave in a DBI model for a real scalar standing in for the pion,…

[Phys. Rev. D 94, 025014] Published Fri Jul 08, 2016

We present a simple and consistent way to compute correlation functions in interacting theories with nontrivial phase diagram. As an example we show how to consistently compute the four-point function in three dimensional ${\mathbb{Z}}_2$-scalar theories. The idea is to perform the path integral by weighting the …

[Phys. Rev. D 94, 025015] Published Fri Jul 08, 2016

The notion of uniform and/or constant tensor fields of rank $>0$ is incompatible with general curved spacetimes. This work considers the consequences of certain tensor-valued coefficients for Lorentz violation in the Standard-Model extension varying with spacetime position. We focus on two of the c…

[Phys. Rev. D 94, 025016] Published Fri Jul 08, 2016

We show that effective field theory techniques can be efficiently used to compute power corrections to the hard thermal loops in a high temperature $T$ expansion. To this aim, we use the recently proposed on-shell effective field theory, which describes the quantum fluctuations around on-shell degrees…

[Phys. Rev. D 94, 025017] Published Fri Jul 08, 2016

We consider quantum entanglement of three accelerating qubits, each of which is locally coupled with a real scalar field, without causal influence among the qubits or among the fields. The initial states are assumed to be the GHZ and W states, which are the two representative three-partite entangled…

[Phys. Rev. D 94, 025012] Published Thu Jul 07, 2016

We show how, by assuming at least eight real timelike supersymmetries in the maximally supersymmetric three-dimensional ungauged supergravity and a further simplifying ansatz, we are naturally led to a pair of Liouville field equations. These are solvable in terms of two meromorphic functions, and w…

[Phys. Rev. D 94, 025013] Published Thu Jul 07, 2016

We report on a numerical study of real-time dynamics of electromagnetically interacting chirally imbalanced lattice Dirac fermions within the classical statistical field theory approach. Namely, we perform exact simulations of the real-time quantum evolution of fermionic fields coupled to classical …

[Phys. Rev. D 94, 025009] Published Wed Jul 06, 2016

We study the diphoton excesses near 750 GeV recently reported by the ATLAS and CMS collaborations within the context of a phenomenologically interesting intersecting/magnetized D-brane model on a toroidal orientifold. It is shown that the model contains a Standard Model singlet scalar as well as vec…

[Phys. Rev. D 94, 025002] Published Tue Jul 05, 2016

We construct exact solutions of BPS pion domain walls in the four-dimensional $\mathcal{N}=1$ supersymmetric $SU(N)$ chiral Lagrangian with pion masses introduced via linear and quadratic superpotentials. The model admits $N$ discrete vacua in the center of $SU(N)$ for the linear superpotential. In addition to the la…

[Phys. Rev. D 94, 025003] Published Tue Jul 05, 2016

We reexamine the emergence of a universal nonequilibrium steady state following a local quench between quantum critical heat baths in spatial dimensions greater than one. We show that energy transport proceeds by the formation of an instantaneous shock wave and a broadening rarefaction wave on eithe…

[Phys. Rev. D 94, 025004] Published Tue Jul 05, 2016

The thermalization process of an out-of-equilibrium boost-invariant strongly interacting non-Abelian plasma is investigated using a holographic method. Boundary sourcing, a distortion of the boundary metric, is employed to drive the system far from equilibrium. Thermalization is analyzed in the full…

[Phys. Rev. D 94, 025005] Published Tue Jul 05, 2016

Vacuum excitation by time-varying boundary conditions is not only of fundamental importance but also has recently been confirmed in a laboratory experiment. In this paper, we study the vacuum excitation of a scalar field by the instantaneous appearance and disappearance of a two-sided Dirichlet wall…

[Phys. Rev. D 94, 025006] Published Tue Jul 05, 2016

We have argued previously, based on the analysis of two-dimensional stringy black holes, that information in stringy versions of four-dimensional Schwarzschild black holes (the singular regions of which are represented by appropriate Wess-Zumino-Witten models) is retained by quantum $W$ symmetries whe…

[Phys. Rev. D 94, 025007] Published Tue Jul 05, 2016

A very simple, quadratic potential is used to construct vortex strings in a generalized Skyrme model and an additional quadratic potential is used to embed sine-Gordon-type halfkinks onto the string worldline, yielding half-Skyrmions on a string. The strings are furthermore compactified onto a circl…

[Phys. Rev. D 94, 025008] Published Tue Jul 05, 2016

It has been recently pointed out that a momentum-dependent coupling of the asymmetric dark matter (ADM) with nucleons can explain the broad disagreement between helioseismological observables and the predictions of standard solar models. In this paper, we propose a minimal simplified ADM model consi…

[Phys. Rev. D 94, 025001] Published Fri Jul 01, 2016

Much attention has been paid to the quantum structure of the vacuum. Higher order processes in quantum electrodynamics are strongly believed to cause polarization and even breakdown of the vacuum in the presence of strong fields soon to be accessible in high intensity laser experiments. Less explore…

[Phys. Rev. D 93, 125032] Published Thu Jun 30, 2016

Nonlinear Maxwell equations are written up to the third-power deviations from a constant-field background, valid within any local nonlinear electrodynamics including QED with a Euler-Heisenberg (EH) effective Lagrangian. The linear electric response to an imposed static finite-sized charge is found …

[Phys. Rev. D 93, 125031] Published Wed Jun 29, 2016

It is known that in contrast with the $E$-mode polarization the $B$-mode polarization of the cosmic microwave background cannot be generated by the Compton scattering in the case of the scalar mode of metric perturbation. However, it is possible to generate the $B$ mode by the Compton scattering in the ca…

[Phys. Rev. D 93, 125029] Published Thu Jun 23, 2016

The helicity of a Dirac neutrino with mass $m$ evolves under the influence of a $B$ field because it has a magnetic dipole moment proportional to $m$. Moreover, it was recently shown that a polarized or anisotropic medium engenders the same effect for both Dirac and Majorana neutrinos. Because a $B$ field p…

[Phys. Rev. D 93, 125030] Published Thu Jun 23, 2016

We develop an operator description, much like thermofield dynamics, for quantum field theories on a real time path with an arbitrary parameter $\sigma (0\le \sigma \le \beta )$. We point out new features which arise when $\sigma \ne \frac{\beta }{2}$ in that the Hilbert space develops a natural, modified inner product different from the standard D…

[Phys. Rev. D 93, 125028] Published Wed Jun 22, 2016

We discuss the magnetic responses of vector meson masses based on the hidden local symmetry (HLS) model in a constant magnetic field, described by the lightest two-flavor system including the pion, rho and omega mesons in the spectrum. The effective masses influenced under the magnetic field are eva…

[Phys. Rev. D 93, 125027] Published Tue Jun 21, 2016

In this paper, we discuss the impact of a tiny Lorentz violating $b^{\mu }$ term on the one-dimensional motion of a Dirac particle scattering on a rectangular barrier. We assume the experiment is done in a particular inertial frame, where the components of $b^{\mu }$ are assumed constants. The results show that Lor…

[Phys. Rev. D 93, 125022] Published Mon Jun 20, 2016

We study the nonlinear responses of relativistic chiral matter to the external fields such as the electric field $\mathit{E}$, gradients of temperature and chemical potential, $\mathbf{\nabla }T$ and $\mathbf{\nabla }\mu$. Using the kinetic theory with Berry curvature corrections under the relaxation time approximation, we compute the transport …

[Phys. Rev. D 93, 125023] Published Mon Jun 20, 2016

The Casimir effect is a physical manifestation of zero point energy of quantum vacuum. In a relativistic quantum field theory, Poincaré symmetry of the theory seems, at first sight, to imply that nonzero vacuum energy is inconsistent with translational invariance of the vacuum. In the setting of two…

[Phys. Rev. D 93, 125024] Published Mon Jun 20, 2016

We consider the continuation of free and interacting scalar field theory to noninteger spacetime dimension $d$. We find that the correlation functions in these theories are necessarily incompatible with unitarity (or with reflection positivity in Euclidean signature). In particular, the theories conta…

[Phys. Rev. D 93, 125025] Published Mon Jun 20, 2016

We study a heavy impurity moving longitudinal with the direction of an external magnetic field in an anomalous chiral medium. Such system would carry a nondissipative current of chiral magnetic effect associated with the anomaly. We show, by generalizing Landau’s criterion for superfluidity, that th…

[Phys. Rev. D 93, 125026] Published Mon Jun 20, 2016

We explore $O(N)$ models in dimensions $4<d<6$. Specifically, we investigate models of an $O(N)$ vector field coupled to an additional scalar field via a cubic interaction. Recent results in $d=6-\epsilon$ have uncovered an interacting ultraviolet fixed point of the renormalization group (RG) if the number $N$…

[Phys. Rev. D 93, 125021] Published Fri Jun 17, 2016

We exploit a connection between the Coulomb/Eikonal phase and the charge distribution in the transverse plane for a transversely polarized nucleon. The known deformation of the charge density in impact parameter space translates into an asymmetry in the Coulomb/Eikonal phase (or the impact parameter…

[Phys. Rev. D 93, 125019] Published Thu Jun 16, 2016

We consider non-Abelian strings in $\mathcal{N}=2$ supersymmetric quantum chromodynamics (QCD) with the $\mathrm{U}(N)$ gauge group and $N_f=N$ quark flavors deformed by a mass term for the adjoint matter. This deformation breaks $\mathcal{N}=2$ supersymmetry down to $\mathcal{N}=1$. Dynamics of orientational zero modes on the string world sheet ar…

[Phys. Rev. D 93, 125020] Published Thu Jun 16, 2016

A numerical implementation of the nonperturbative renormalization group is used to compute the two-particle bound state mass of ${\varphi }^4$ quantum field theory in three dimensions to good accuracy, in agreement with the results from other approaches.

[Phys. Rev. D 93, 125018] Published Tue Jun 14, 2016

We evaluate the difference between the Casimir free energies corresponding to either grounded or isolated perfect conductors, at high temperatures. We show that a general and simple expression for that difference can be given, in terms of the electrostatic capacitance matrix for the system of conduc…

[Phys. Rev. D 93, 125015] Published Mon Jun 13, 2016

We study the turbulent regime of chiral (magneto)hydrodynamics for charged and neutral matter with chirality imbalance. We find that the chiral magnetohydrodynamics for charged plasmas possesses a unique scaling symmetry, only without fluid helicity under the local charge neutrality. We also find a …

[Phys. Rev. D 93, 125016] Published Mon Jun 13, 2016

We study matter-coupled $N=3$ gauged supergravity in four dimensions with various semisimple gauge groups. When coupled to $n$ vector multiplets, the gauged supergravity contains $3+n$ vector fields and $3n$ complex scalars parametrized by $SU(3,n)/SU(3)\times SU(n)\times U(1)$ coset manifold. Semisimple gauge groups tak…

[Phys. Rev. D 93, 125017] Published Mon Jun 13, 2016

This paper provides a superfield based approach to constructing a collinear slice of $\mathcal{N}=1$ superspace. The strategy is analogous to integrating out anticollinear fermionic degrees-of-freedom as was developed in the context of soft-collinear effective theory. The resulting Lagrangian can be understood …

[Phys. Rev. D 93, 125013] Published Fri Jun 10, 2016

We present the bare one-, two-, and three-loop form factors in massless quantum chromodynamics as linear combinations of finite master integrals. Using symbolic integration, we compute their $\epsilon$ expansions and thereby reproduce all known results with an independent method. Remarkably, in our finite ba…

[Phys. Rev. D 93, 125014] Published Fri Jun 10, 2016

We construct supersymmetric Janus solutions using four-dimensional $N=3$ gauged supergravity with $SO(3)\times SU(3)$ gauge group. The $N=3$ supersymmetric ${\mathrm{AdS}}_4$ vacuum with unbroken $SO(3)\times SU(3)$, identified with the compactification of eleven-dimensional supergravity on ${\mathrm{AdS}}_4\times N^{010}$, provides a gravity dual of supe…

[Phys. Rev. D 93, 125012] Published Thu Jun 09, 2016

We compute the Rényi entropy and the supersymmetric Rényi entropy for the six-dimensional free (2, 0) tensor multiplet. We make various checks on our results, and they are consistent with the previous results about the (2, 0) tensor multiplet. As a by-product, we have established a canonical way to …

[Phys. Rev. D 93, 125010] Published Wed Jun 08, 2016

We study Gaussian quantum steering and its asymmetry in the background of a Schwarzschild black hole. We present a Gaussian channel description of quantum state evolution under the influence of Hawking radiation. We find that thermal noise introduced by the Hawking effect will destroy the steerabili…

[Phys. Rev. D 93, 125011] Published Wed Jun 08, 2016

We construct the Hamiltonians and symmetry generators of Calogero-oscillator and Calogero-Coulomb models on the $N$-dimensional sphere within the matrix-model reduction approach. Our method also produces the integrable Calogero-Coulomb-Stark model on the sphere and proves the integrability of the spin…

[Phys. Rev. D 93, 125008] Published Tue Jun 07, 2016

We consider the quantum mechanics of Calogero models in an oscillator or Coulomb potential on the $N$-dimensional sphere. Their Hamiltonians are obtained by an appropriate Dunkl deformation of the oscillator/Coulomb system on the sphere and its restriction to (Coxeter reflection) symmetric wave functi…

[Phys. Rev. D 93, 125009] Published Tue Jun 07, 2016

We relate the collective dynamic internal geometric degrees of freedom to the gauge fluctuations in $\nu =1/m(\mathrm{m}\mathrm{odd})$ fractional quantum Hall effects. In this way, in the lowest Landau level, a highly nontrivial quantum geometry in two-dimensional guiding center space emerges from these internal geometr…

[Phys. Rev. D 93, 125005] Published Mon Jun 06, 2016

We propose a compact analytic expression for the polylogarithmic part of the $n$-point two-loop all-plus helicity amplitude in gauge theory.

[Phys. Rev. D 93, 125006] Published Mon Jun 06, 2016

The source of $CPT$ violation in the photon sector of the Standard Model Extension arises from a Chern-Simons-like contribution that involves a coupling to a fixed background vector field $k_{AF}^{\mu }$. These Lorentz- and $CPT$-violating photons have well-known theoretical issues that arise from missing states a…

[Phys. Rev. D 93, 125007] Published Mon Jun 06, 2016

In this paper, an extension of the classification of flipped $SU(5)$ heterotic-string vacua from Faraggi, Rizos and Sonmez [Nucl. Phys. B886, 202 (2014)] with a variation of the $SO(10)$ breaking $\alpha$ basis vector is presented. A statistical sampling in the space of $2^{45}$ flipped $SU(5)$ vacua is explored, whe…

[Phys. Rev. D 93, 125002] Published Thu Jun 02, 2016

The vacuum state of a relativistic quantum field contains entanglement between regions separated by spacelike intervals. Such spatial entanglement can be revealed using an operational method introduced in [M. Rodriguez-Vazquez, M. del Rey, H. Westman, and J. Leon, Ann. Phys. (N.Y.) 351, 112 (2014), …

[Phys. Rev. D 93, 125003] Published Thu Jun 02, 2016

In this paper, we study the influence of an external magnetic field in holographic QCD models where the backreaction is modeled via an appropriate choice of the background metric. We add a phenomenological soft wall dilaton to incorporate better IR behavior (confinement). Elaborating on previous stu…

[Phys. Rev. D 93, 125004] Published Thu Jun 02, 2016

A direct correspondence of quantum mechanics as a minisuperspace model for a self-interacting scalar quantum-field theory is established by computing, in several models, the infrared contributions to 1-loop effective potentials of Coleman-Weinberg type. A minisuperspace approximation rather than tru…

[Phys. Rev. D 93, 125001] Published Wed Jun 01, 2016

An axiomatic approach to electrodynamics reveals that Maxwell electrodynamics is just one instance of a variety of theories for which the name electrodynamics is justified. They all have in common that their fundamental input are Maxwell’s equations $\mathrm{d}F=0$ (or $F=\mathrm{d}A$) and $\mathrm{d}H=J$ and a constitutive law $H=\#\dots$

[Phys. Rev. D 93, 105046] Published Tue May 31, 2016

It is shown how to obtain conformal blocks from embedding space with the help of the operator product expansion. The minimal conformal block originates from scalar exchange in a four-point correlation function of four scalars. All remaining conformal blocks are simple derivatives of the minimal conf…

[Phys. Rev. D 93, 105047] Published Tue May 31, 2016

We study radiation emitted by a time-dependent source of a scalar massless field in the framework of the ghost-free modifications of the theory. We consider a simple model of the emitter: namely, we assume that it is point-like and monochromatic. We focus on the most common versions of the ghost-fre…

[Phys. Rev. D 93, 105048] Published Tue May 31, 2016

We discuss fermions in a spontaneously generated holographic lattice background. The lattice structure at the boundary is generated by introducing a higher-derivative interaction term between a $U(1)$ gauge field and a scalar field. We solve the equations of motion below the critical temperature at wh…

[Phys. Rev. D 93, 105045] Published Fri May 27, 2016

Using a method based on the generating functional plus a kind of “correspondence principle”—which acts as a bridge between the electromagnetic and scalar fields—it is shown that the interparticle potential energy concerning a given $D$-dimensional electromagnetic model can be obtained in a simple way …

[Phys. Rev. D 93, 105042] Published Thu May 26, 2016

It is shown that the renormalization group turns to be a symmetry group in a theory initially formulated in a space of scale-dependent functions, i.e., those depending on both the position $x$ and the resolution $a$. Such a theory, earlier described in [1,2], is finite by construction. The space of scal…

[Phys. Rev. D 93, 105043] Published Thu May 26, 2016

Matter-neutrino resonances (MNRs) can drastically modify neutrino flavor evolution in astrophysical environments and may significantly impact nucleosynthesis. Here we further investigate the underlying physics of MNR-type flavor transitions. We provide generalized resonance conditions and make analy…

[Phys. Rev. D 93, 105044] Published Thu May 26, 2016

The present article can be considered as a complement to the work of Phys. Rev. D 93, 045002 (2016), where an nonperturbative approach to QED with $x$-electric critical potential steps was developed. In the beginning, we study conditions when in and out spaces of the QED under consideration are unitar…

[Phys. Rev. D 93, 105040] Published Wed May 25, 2016

We present electric-magnetic (EM)-duality formulations for non-Abelian gauge groups with $N=1$ supersymmetry in $D=3+3$ and $5+5$ space-time dimensions. We show that these systems generate self-dual $N=1$ supersymmetric Yang-Mills (SDSYM) theory in $D=2+2$. For a $N=2$ supersymmetric EM-dual system in $D=3+3$, we…

[Phys. Rev. D 93, 105041] Published Wed May 25, 2016

We analyze the ($3+1$)D equilibrium chiral magnetic effect (CME). We apply derivative expansion to the Wigner transform of the two-point Green function. This technique allows us to express the response of electric current to the external electromagnetic field strength through the momentum space topolo…

[Phys. Rev. D 93, 105036] Published Tue May 24, 2016

By using the Faddeev-Popov quantization procedure, we demonstrate that the radiative effects computed using the first-order and second-order Einstein-Hilbert action for general relativity are the same, provided one can discard tadpoles. In addition, we show that the first-order form of this action c…

[Phys. Rev. D 93, 105037] Published Tue May 24, 2016

We study the question of whether two frames of a given physical theory are equivalent or not in the presence of quantum corrections. By using field theory arguments, we claim that equivalence is broken in the presence of anomalous symmetries in one of the frames. This is particularized to the case o…

[Phys. Rev. D 93, 105038] Published Tue May 24, 2016

We develop a new semiclassical approach, which starts with the density matrix given by the Euclidean time path integral with fixed coinciding end points, and proceed by identifying classical (minimal Euclidean action) path, to be referred to as a flucton, which passes through this end point. Fluctua…

[Phys. Rev. D 93, 105039] Published Tue May 24, 2016

In the context of a broad class of quenched models, we derive a generalized differential form of the Kadanoff-Baym (KB) ansatz which relates the out of equilibrium correlated and spectral Green’s functions. This relation holds at any time both before the quench (when it coincides with the fluctuatio…

[Phys. Rev. D 93, 105034] Published Mon May 23, 2016

A scheme is presented to cancel out topologically unfactorized infrared divergences in the inclusive production of heavy quarkonia, which affect the nonrelativistic QCD (NRQCD) factorization of these processes. Heavy quarkonia are defined as resonance states of QCD instead of a color-singlet heavy q…

[Phys. Rev. D 93, 105035] Published Mon May 23, 2016

We compute the logarithmic coefficient of the entanglement entropy on a sphere for a Maxwell field in $d=3+1$ dimensions. In spherical coordinates the problem decomposes into one-dimensional ones along the radial coordinate for each angular momentum. We show that the entanglement entropy of a Maxwell …

[Phys. Rev. D 93, 105031] Published Fri May 20, 2016

In this work we consider the time evolution of charged Rényi entanglement entropies after exciting the vacuum with local fermionic operators. In order to explore the information contained in charged Rényi entropies, we perform computations of their excess due to the operator excitation in two-dimens…

[Phys. Rev. D 93, 105032] Published Fri May 20, 2016

We show how to consistently renormalize $\mathcal{N}=1$ and $\mathcal{N}=2$ supersymmetric Yang-Mills theories in flat space with a local (i.e. spacetime-dependent) renormalization scale in a holomorphic scheme. The action gets enhanced by a term proportional to derivatives of the holomorphic coupling. In the $\mathcal{N}=2$ case, thi…

[Phys. Rev. D 93, 105033] Published Fri May 20, 2016

In this paper, we show that adding to the standard model particle content a set of superstrongly interacting particles with appropriately chosen hypercharges leads to unification of strong and electroweak interactions at a level comparable to that of the minimal supersymmetric standard model.

[Phys. Rev. D 93, 105030] Published Thu May 19, 2016

Using the chiral kinetic theory we derive the electric and chiral current densities in inhomogeneous relativistic plasma. We also derive equations for the electric and chiral chemical potentials that close the Maxwell equations in such a plasma. The analysis is done in the regimes with and without a…

[Phys. Rev. D 93, 105028] Published Wed May 18, 2016

We consider $2+1$-dimensional off-shell $\mathcal{N}=1$ pure supergravity that is constructed from graviton, gravitino and auxiliary field. We show that the $R^2$ supersymmetric invariant and $R_{\mu \nu }^2$ supersymmetric invariant are expressed as local supersymmetric exact terms up to mass terms for the gravitino. In both c…

[Phys. Rev. D 93, 105029] Published Wed May 18, 2016