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In this paper, we completely characterize time-reversal invariant three-dimensional Chern-Simons gauge theories with torus gauge group. At the level of the Lagrangian, toral Chern-Simons theory is defined by an integral lattice, while at…

High Energy Physics - Theory · Physics 2022-11-29 Roman Geiko , Gregory W. Moore

We present an alternative derivation of the parity anomaly for a massless Dirac field in 2+1 dimensions coupled to a gauge field. The anomaly functional, a Chern-Simons action for the gauge field, is obtained from the non-trivial Jacobian…

High Energy Physics - Theory · Physics 2009-10-31 M. L. Ciccolini , C. D. Fosco , F. A. Schaposnik

Here, we provide a simple Hubbard-like model of spin-$1/2$ fermions that gives rise to the SU(2) symmetric Thirring model that is equivalent, in the low-energy limit, to Yang-Mills-Chern-Simons model. First, we identify the regime that…

Strongly Correlated Electrons · Physics 2015-06-17 Giandomenico Palumbo , Jiannis K. Pachos

We consider the noncommutative standard model based on $SU(3)\times SU(2)\times U(1)$. We study the gauge transformation of right handed neutrino and its direct interaction with photon in the noncommutative space-time. We show that the…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. M. Ettefaghi , M. Haghighat

We note that in (2+1)-dimensional gauge theories with even number of massless fermions, there is anomalous $Z_2$ symmetry if theory is regularized in a parity-invariant way. We then consider a parity invariant $U(1)_V\times U(1)_A$ model,…

High Energy Physics - Theory · Physics 2011-08-11 Deog Ki Hong

We compute the contribution to the modulus of the one-loop effective action in pure non-Abelian Chern-Simons theory in an arbitrary covariant gauge. We find that the results are dependent on both the gauge parameter ($\alpha$) and the…

High Energy Physics - Theory · Physics 2009-10-30 F. A. Dilkes , L. C. Martin , D. G. C. McKeon , T. N. Sherry

Based on the observation that a particle motion in one dimension maps to a two-dimensional motion of a charged particle in a uniform magnetic field, constrained in the lowest Landau level, we formulate a system of one-dimen- sional…

High Energy Physics - Theory · Physics 2009-10-22 Satoshi Iso , Dimitra Karabali , B. Sakita

We bosonize the Massive Thirring Model in 3+1D for small coupling constant and arbitrary mass. The bosonized action is explicitly obtained both in terms of a Kalb-Ramond tensor field as well as in terms of a dual vector field. An exact…

High Energy Physics - Theory · Physics 2009-10-30 R. Banerjee , E. C. Marino

We present an elegant method to prove the invariance of the Chern-Simons part of the non-Abelian action for N coinciding D-branes under the R-R and NS-NS gauge transformations, by carefully defining what is meant by a background gauge…

High Energy Physics - Theory · Physics 2010-04-05 Joke Adam , Jos Gheerardyn , Bert Janssen , Yolanda Lozano

Perturbative renormalization of a non-Abelian Chern-Simons gauge theory is examined. It is demonstrated by explicit calculation that, in the pure Chern-Simons theory, the beta-function for the coefficient of the Chern-Simons term vanishes…

High Energy Physics - Theory · Physics 2009-10-22 Wei Chen , Gordon W. Semenoff , Yong-Shi Wu

We study the effect of a Chern-Simons term in a theory with discrete gauge group H, which in (2+1)-dimensional space time describes (non-abelian) anyons. As in a previous paper, we emphasize the underlying algebraic structure, namely the…

High Energy Physics - Theory · Physics 2015-06-26 F. Alexander Bais , Peter van Driel , Mark de Wild Propitius

We extend standard path-integral techniques of bosonization and duality to the setting of noncommutative geometry. We start by constructing the bosonization prescription for a free Dirac fermion living in the noncommutative plane…

High Energy Physics - Theory · Physics 2009-10-31 Carlos Nunez , Kasper Olsen , Ricardo Schiappa

We study an Abelian Maxwell-Chern-Simons model in $2 +1 $ dimensions which includes a magnetic moment interaction. We show that this model possesses domain wall as well as vortex solutions.

High Energy Physics - Theory · Physics 2007-05-23 Manuel Torres

Some years ago, it was shown how fermion self-interacting terms of the Thirring-type impact the usual structure of massless two-dimensional gauge theories [1]. In that work only the cases of pure vector and pure chiral gauge couplings have…

High Energy Physics - Theory · Physics 2008-11-26 D. Dalmazi , A. de Souza Dutra

We study the electrodynamics of generic charged particles (bosons, fermions, relativistic or not) constrained to move on an infinite plane. An effective gauge theory in 2+1 dimensional spacetime which describes the real electromagnetic…

High Energy Physics - Theory · Physics 2009-10-22 E. C. Marino

We demonstrate that it is possible to use atomic manipulation techniques to adiabatically tune between one-dimensional and two-dimensional topological superconductors in magnet--superconductor hybrid (MSH) structures. This allows one to…

Superconductivity · Physics 2020-01-08 Eric Mascot , Sagen Cocklin , Stephan Rachel , Dirk K. Morr

We study issues of duality in 3D field theory models over a canonical noncommutative spacetime and obtain the noncommutative extension of the Self-Dual model induced by the Seiberg-Witten map. We apply the dual projection technique to…

High Energy Physics - Theory · Physics 2009-11-10 M. S. Guimarães , J. L. Noronha , D. C. Rodrigues , C. Wotzasek

Employing the Foldy-Wouthuysen transformation it is demonstrated straightforwardly that the first and second Chern numbers are equal to the coefficients of the 2+1 and 4+1 dimensional Chern-Simons actions which are generated by the massive…

Mathematical Physics · Physics 2012-02-07 O. F. Dayi , M. Elbistan , E. Yunt

We study the non relativistic limit of a Model of Fermions interacting through a Chern-Simons Field, from a perspective that resembles the Wilson's Renormalization Group approach, instead of the more usual approach found in most texts of…

High Energy Physics - Theory · Physics 2009-10-31 A. J. da Silva

In this paper, we numerically study the non-Abelian statistics of the zero-energy Majorana fermions on the end of Majorana chain and show its application to quantum computing by mapping it to a spin model with special symmetry. In…

Mesoscale and Nanoscale Physics · Physics 2017-05-24 Xiao-Ming Zhao , Jing Yu , Jing He , Qiu-Bo Cheng , Ying Liang , Su-Peng Kou