Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Assunção, J. F."'
Publikováno v:
EPL 136, 21002 (2021)
We discuss applications of the proper-time method in various minimal Lorentz violating modifications of QED and present new results obtained with its use. Explicitly. we calculate the complete one-loop Heisenberg-Euler effective action involving all
Externí odkaz:
http://arxiv.org/abs/2109.11901
Publikováno v:
EPL 139 29001 (2022)
In this paper, we study the effects of a modified theory of gravity - the rainbow gravity - on the relativistic Bose-Einstein condensate (BEC). We initially discuss some formal aspects of the model in order to compute the corrections to the relevant
Externí odkaz:
http://arxiv.org/abs/2105.13388
In this paper we study the corrections emergent from a Ho\v{r}ava-Lifshitz extension of the complex scalar sector to the Bose-Einstein condensation and to the thermodynamics parameters. We initially discussed some features of the model to only then c
Externí odkaz:
http://arxiv.org/abs/2103.03004
Publikováno v:
EPL, 134 (2021) 41002
In this work, we study the behavior of the nonabelian five-dimensional Chern-Simons term at finite temperature regime in order to verify the possible nonanalyticity. We employ two methods, a perturbative and a non-perturbative one. No scheme of regul
Externí odkaz:
http://arxiv.org/abs/2011.12333
In this paper we study the corrections emergent from a Lorentz-violating CPT-odd extension of the complex scalar sector to the Bose-Einstein condensation and to the thermodynamics parameters. We initially discussed some features of the model to only
Externí odkaz:
http://arxiv.org/abs/2009.07034
This paper presents divergent contributions of the radiative corrections for a Lorentz-violating extension of the scalar electrodynamics. We initially discuss some features of the model and extract the Feynman rules. Then we compute the one-loop radi
Externí odkaz:
http://arxiv.org/abs/2004.05680
Publikováno v:
Phys. Rev. D 100, 085009 (2019)
In this paper, we formulate a theory of the second-rank antisymmetric (pseudo)tensor field minimally coupled to a spinor, calculate the one-loop effective potential of the (pseudo)tensor field, and, explicitly, demonstrate that it is positively defin
Externí odkaz:
http://arxiv.org/abs/1902.10592
Publikováno v:
JHEP08(2018)072
We calculate the linearized four-dimensional gravitational Chern-Simons term at the finite temperature, show its finiteness and explicitly demonstrate that its transversal part matches the known result for the chiral vortical conductivity.
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Externí odkaz:
http://arxiv.org/abs/1805.11049
Publikováno v:
Phys. Rev. D 96, 065021 (2017)
In this paper, we study the spontaneous Lorentz symmetry breaking for a four-dimensional massless four-fermion model. Our methodology is based on use of the rationalized propagator. We show that a bumblebee potential arises as a result of one-loop ca
Externí odkaz:
http://arxiv.org/abs/1707.07778
In this paper, we discuss the behavior of the Carroll-Field-Jackiw (CFJ) coefficient $k^{\mu}$ arising due to integration over massive fermions, and the modification suffered by its topological structure in the finite temperature case. Our study is b
Externí odkaz:
http://arxiv.org/abs/1609.09120