Lorentz-violating gravity and the bootstrap procedure
Sign Up to like & getrecommendations! Published in 2020 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ab53ef
Abstract: In conventional gravitational physics, the so-called "bootstrap procedure" can be used to extrapolate from a linear model of a rank-2 tensor to a full non-linear theory of gravity (i.e., general relativity) via a coupling to… read more here.
Keywords: gravity; lorentz violating; procedure; bootstrap procedure ... See more keywords
Bumblebee gravity and particle motion in Snyder noncommutative spacetime structures
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/04/036
Abstract: A metric with a Lorentz violating parameter is associated with the bumblebee gravity model. We study the motion of a particle in this bumblebee background where the dynamical variables satisfy non-canonical Snyder algebra along with… read more here.
Keywords: bumblebee background; motion; bumblebee gravity; snyder ... See more keywords
Dynamical chiral symmetry breaking in NJL Model with a strong background magnetic field and Lorentz-violating extension of the Standard Model
Sign Up to like & getrecommendations! Published in 2017 at "Chinese Physics C"
DOI: 10.1088/1674-1137/41/6/063104
Abstract: The Eigenstate Method has been developed to deduce the fermion propagator with a constant external magnetic field. In general, we find its result is equivalent to other methods and this new method is more convenient,… read more here.
Keywords: field lorentz; model; lorentz violating; fermion propagator ... See more keywords
Top hadrons in Lorentz-violating field theory
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.075010
Abstract: If there is Lorentz symmetry violation in the $t$ quark sector of the standard model, changes to particles' dispersion relations might allow for the existence of stable top-flavored hadrons. Observations of the survival of high-energy… read more here.
Keywords: hadrons lorentz; ensuremath; lorentz violating; field theory ... See more keywords
Lorentz-violating extension of Wigner function formalism and chiral kinetic theory
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.110.035020
Abstract: The quantum kinetic equation for the gauge-invariant Wigner function, constructed from spinor fields that obey the Dirac equation modified by CPT and Lorentz symmetry-violating terms, is presented. The equations for the components of the Wigner… read more here.
Keywords: wigner function; chiral kinetic; lorentz violating; kinetic theory ... See more keywords
Lorentz-violating Yukawa theory at finite temperature
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.110.095022
Abstract: This paper addresses Yukawa theory, focusing on the scattering between two identical fermions mediated by an intermediate scalar boson, considering the effects of thermal contributions and Lorentz symmetry breaking. Temperature is introduced into the theory… read more here.
Keywords: temperature; theory finite; violating yukawa; symmetry breaking ... See more keywords
Lorentz-violating scalar Hamiltonian and the equivalence principle in a static metric
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.035018
Abstract: In this paper, we obtain a nonrelativistic Hamiltonian from the Lorentz-violating (LV) scalar Lagrangian in the minimal SME. The Hamiltonian is obtained by two different methods. One is through the usual ansatz $\Phi(t,\vec{r})=e^{-imt}\Psi(t,\vec{r})$ applied to… read more here.
Keywords: violating scalar; equivalence principle; lorentz violating;
Thermal aspects of interacting quantum gases in Lorentz-violating scenarios
Sign Up to like & getrecommendations! Published in 2021 at "European Physical Journal Plus"
DOI: 10.1140/epjp/s13360-021-01289-z
Abstract: In this work, we study the interaction of quantum gases in Lorentz-violating scenarios considering both boson and fermion sectors. In the latter case, we investigate the consequences of a system governed by scalar, vector, pseudovector… read more here.
Keywords: lorentz violating; gases lorentz; quantum gases; particle number ... See more keywords
Casimir energy for Lorentz-violating scalar field with helical boundary condition in d spatial dimensions
Sign Up to like & getrecommendations! Published in 2024 at "Modern Physics Letters A"
DOI: 10.1142/s021773232450072x
Abstract: Delving into spring-like helical configurations, such as DNA within our cells, motivates physicists to inquire about the effects of such structures in the realm of quantum field theory, specifically unraveling their manifestation of effectiveness in… read more here.
Keywords: energy; violating scalar; casimir energy; spatial dimensions ... See more keywords
Scalar Casimir effect for a conducting cylinder in a Lorentz-violating background
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Modern Physics A"
DOI: 10.1142/s0217751x21501682
Abstract: Following a field-theoretical approach, we study the scalar Casimir effect upon a perfectly conducting cylindrical shell in the presence of spontaneous Lorentz symmetry breaking. The scalar field is modeled by a Lorentz-breaking extension of the… read more here.
Keywords: lorentz violating; casimir effect; scalar casimir; lorentz ... See more keywords
Lorentz-Violating Gravity Models and the Linearized Limit
Sign Up to like & getrecommendations! Published in 2018 at "Symmetry"
DOI: 10.3390/sym10100490
Abstract: Many models in which Lorentz symmetry is spontaneously broken in a curved spacetime do so via a “Lorentz-violating” (LV) vector or tensor field, which dynamically takes on a vacuum expectation value and provides additional local… read more here.
Keywords: violating gravity; gravity models; gauge invariant; lorentz violating ... See more keywords