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19932026
most citedPrediction and observation of the first antiferromagnetic topological insulator

1.2k citations

Showing 2021 · hep-thShow all

29 papers · 2 filters

hep-th2021★ 4 cited

On the world sheet of continuous helicity particle

D. S. Kaparulin, S. L. Lyakhovich, I. A. Retuntsev

We consider the class of spinning particle theories, whose quantization corresponds to the continuous helicity representation of the Poincare group. The classical trajectories of t…

hep-th2021

On a structure of the one-loop divergences in supersymmetric sigma-model

I. L. Buchbinder, A. S. Budekhina, B. S. Merzlikin

We study the quantum structure of four-dimensional superfield sigma-model formulated in harmonic superspace in terms of the omega-hypermultiplet superfield . The mo…

hep-th2021★ 11 cited

On classical and quantum deformations of gauge theories

I. L. Buchbinder, P. M. Lavrov

We elaborate the generalizations of the approach to gauge-invariant deformations of the gauge theories developed in our previous work [1]. In the given paper we construct the exact…

hep-th2021★ 33 cited

Unconstrained off-shell superfield formulation of supersymmetric higher spins

Ioseph Buchbinder, Evgeny Ivanov, Nikita Zaigraev

We present, for the first time, the complete off-shell superfield actions for any free massless integer spin fields, using the harmon…

hep-th2021★ 5 cited

Vacuum instability due to the creation of neutral Fermion with anomalous magnetic moment by magnetic-field inhomogeneities

T. C. Adorno, Zi-Wang He, S. P. Gavrilov +1

We study neutral Fermions pair creation with anomalous magnetic moment from the vacuum by time-independent magnetic-field inhomogeneity as an external background. We show that the…

hep-th2021★ 5 cited

Reducible gauge symmetry versus unfree gauge symmetry in Hamiltonian formalism

V. A. Abakumova, I. Yu. Karataeva, S. L. Lyakhovich

The unfree gauge symmetry implies that gauge variation of the action functional vanishes provided for the gauge parameters are restricted by the differential equations. The unfree…

hep-th2021★ 18 cited

Slightly Broken Higher Spin Symmetry: General Structure of Correlators

Pavel Gerasimenko, Alexey Sharapov, Evgeny Skvortsov

We explore a class of CFT's with higher spin currents and charges. Away from the free or limit the non-conservation of currents is governed by operators built out of the…

hep-th2021★ 1 cited

Twistor formulation of massless infinite spin fields

I. L. Buchbinder, S. A. Fedoruk, A. P. Isaev

We construct massless infinite spin irreducible representations of the six-dimensional Poincaré group in the space of fields depending on twistor variables. It is shown that the ma…

hep-th2021★ 5 cited

Lie and Leibniz Algebras of Lower-Degree Conservation Laws

Boris M. Elfimov, Alexey A. Sharapov

A relationship between the asymptotic and lower-degree conservation laws in (non-)linear gauge theories is considered. We show that the true algebraic structure underlying asymptot…

hep-th2021★ 5 cited

Superspace First Order Formalism, Trivial Symmetries and Electromagnetic Interactions of Linearized Supergravity

I. L. Buchbinder, S. James Gates, K. Koutrolikos

We introduce a first order description of linearized non-minimal () supergravity in superspace, using the unconstrained prepotential superfield instead of the conventionally…

hep-th2021★ 2 cited

Vacuum instability in time-dependent electric fields. New example of exactly solvable case

A. I. Breev, S. P. Gavrilov, D. M. Gitman +1

A new exactly solvable case in strong-field quantum electrodynamics with a time-dependent external electric field is presented. The corresponding field is given by an analytic func…

hep-th2021★ 10 cited

2D holography beyond the Jackiw-Teitelboim model

Florian Ecker, Carlos Valcárcel, Dmitri Vassilevich

Having in mind extensions of 2D holography beyond the Jackiw-Teitelboim model we propose holographic counterterms and asymptotic conditions for a family of asymptotically AdS d…

hep-th2021★ 6 cited

Reducible Stueckelberg symmetry and dualities

V. A. Abakumova, S. L. Lyakhovich

We propose a general procedure for iterative inclusion of Stueckelberg fields to convert the theory into gauge system being equivalent to the original one. In so doing, we admit re…

hep-th2021

Extended Chern-Simons model for a vector multiplet

D. S. Kaparulin, S. L. Lyakhovich, O. D. Nosyrev

We consider a gauge theory of vector fields in Minkowski space. At the free level, the dynamical variables are subjected to the extended Chern-Simons (ECS) equations with high…

hep-th2021★ 21 cited

Poisson gauge theory

Vladislav G. Kupriyanov

The Poisson gauge algebra is a semi-classical limit of complete non-commutative gauge algebra. In the present work we formulate the Poisson gauge theory which is a dynamical field…

hep-th2021★ 2 cited

N=1,2,3 l-conformal Galilei superalgebras

Anton Galajinsky, Ivan Masterov

The issue of constructing N=1,2,3 supersymmetric extensions of the l-conformal Galilei algebra is reconsidered following the approach in [JHEP 1709 (2017) 131]. Drawing a parallel…

hep-th2021★ 28 cited

General Cubic Interacting Vertex for Massless Integer Higher Spin Fields

I. L. Buchbinder, A. A. Reshetnyak

We consider a massless higher spin field theory within the BRST approach and construct a general off-shell cubic vertex corresponding to irreducible higher spin fields of helicitie…

hep-th2021★ 6 cited

Hamiltonian BFV-BRST Quantization for the Systems with Unfree Gauge Symmetry

V. A. Abakumova, S. L. Lyakhovich

The BFV-BRST Hamiltonian quantization method is presented for the theories where the gauge parameters are restricted by differential equations. The general formalism is exemplified…

hep-th2021★ 3 cited

Fermion scattering on topological solitons in the nonlinear -model

A. Yu. Loginov

The scattering of Dirac fermions in the background fields of topological solitons of the -dimensional nonlinear -model is studied using both analytical and numeric…

hep-th2021★ 5 cited

On the two-loop divergences in 6D, SYM theory

I. L. Buchbinder, E. A. Ivanov, B. S. Merzlikin +1

We continue studying supersymmetric Yang-Mills (SYM) theory in the harmonic superspace formulation. Using the superfield background field meth…

hep-th2021★ 18 cited

On a gauge-invariant deformation of a classical gauge-invariant theory

I. L. Buchbinder, P. M. Lavrov

We consider a general gauge theory with independent generators and study the problem of gauge-invariant deformation of initial gauge-invariant classical action. The problem is form…

hep-th2021★ 4 cited

Remarks on D(2,1;a) super-Schwarzian derivative

Anton Galajinsky, Ivan Masterov

It was recently demonstrated that N=1,2,3,4 super-Schwarzian derivatives can be constructed by applying the method of nonlinear realisations to finite-dimensional superconformal gr…

hep-th2021★ 2 cited

One-loop divergences in the six-dimensional hypermultiplet self-coupling model

A. S. Budekhina, B. S. Merzlikin

We study the six-dimensional supersymmetric hypermultiplet model with arbitrary self-coupling. The model is considered in the external classical gauge superfield ba…

hep-th2021★ 28 cited

Cubic Vertices for N=1 Supersymmetric Massless Higher Spin Fields in Various Dimensions

I. L. Buchbinder, V. A. Krykhtin, Mirian Tsulaia +1

Using the BRST approach to higher spin field theories we develop a generic technique for constructing the cubic interaction vertices for N=1 supersymmetric massless higher spin fie…