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pro vyhledávání: '"Roberto V. Maluf"'
Autor:
Fernando M. Belchior, Roberto V. Maluf
Publikováno v:
Physics Letters B, Vol 855, Iss , Pp 138794- (2024)
This work investigates the classical and quantum duality between the SIM(1)-Maxwell-Chern-Simons (MCS) model and its self-dual counterpart. Initially, we focus on free-field cases to establish equivalence through two distinct approaches: comparing th
Externí odkaz:
https://doaj.org/article/51967e33d08c4eb2b4207e0bd24418ad
Publikováno v:
Universe, Vol 10, Iss 6, p 258 (2024)
We study the space-time geometry generated by coupling a free scalar field with a noncanonical kinetic term to general relativity in (2+1) dimensions. After identifying a family of scalar Lagrangians that yield exact analytical solutions in static an
Externí odkaz:
https://doaj.org/article/6f6c0cb2a0fa4807bc824a3760220b47
Autor:
Fernando M. Belchior, Roberto V. Maluf
Publikováno v:
Physics Letters B, Vol 844, Iss , Pp 138107- (2023)
This work aims to study the radiative corrections in a vector model with spontaneous Lorentz symmetry violation, known in the literature as the bumblebee model. We consider such a model with self-interaction quadratic smooth potential responsible for
Externí odkaz:
https://doaj.org/article/d4a7721a641a410ba9a5f84e6b0a23d9
Publikováno v:
Proceedings of International Conference on Black Holes as Cosmic Batteries: UHECRs and Multimessenger Astronomy — PoS(BHCB2018).
Publikováno v:
Physical Review
In this paper, we consider an electrodynamics of higher derivatives coupled to a Lorentz-violating background tensor. Specifically, we are interested in a dimension-five term of the CPT-odd sector of the nonminimal Standard-Model Extension. By a part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76c6c1e901493f5952677bed1bb339e9
http://arxiv.org/abs/1903.12507
http://arxiv.org/abs/1903.12507
Autor:
Roberto V. Maluf
Publikováno v:
International Journal of Modern Physics A. 26:4991-5003
We consider the influence of a noncommutative space on the Klein-Gordon and the Dirac oscillators. The nonrelativistic limit is taken and the $\theta$-modified Hamiltonians are determined. The corrections of these Hamiltonians on the energy levels ar