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 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
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
Bosonic Casimir Effect in an Aether-like Lorentz-Violating Scenario with Higher Order Derivatives
Sign Up to like & getrecommendations! Published in 2023 at "Universe"
DOI: 10.3390/universe9050241
Abstract: In this paper, we investigate the bosonic Casimir effect in a Lorentz-violating symmetry scenario. The theoretical model adopted consists of a real massive scalar quantum field confined in a region between two large parallel plates,… read more here.
Keywords: bosonic casimir; aether like; casimir effect; higher order ... See more keywords