Zobrazeno 1 - 10
of 815
pro vyhledávání: '"Moreira, P. R."'
We investigate the dynamics of fermion localization within the framework of $f(T, B)$ gravity featuring non-minimal couplings. Starting from the Dirac action for a spin-$1/2$ fermion in a five-dimensional spacetime governed by torsional $f(T, B)$ gra
Externí odkaz:
http://arxiv.org/abs/2407.15190
Autor:
Ahmed, Faizuddin, Moreira, Allan R. P.
In this work, we investigate the behavior of non-relativistic quantum particles immersed in a cosmic string space-time background. Our study involves the examination of these particles as they interact with a range of influences, including potential,
Externí odkaz:
http://arxiv.org/abs/2405.17504
This study delves deeply into braneworld scenarios within modified gravity models, investigating their impact on particle localization and the structure of branes. Through a comprehensive blend of numerical analyses and theoretical inquiries, we unra
Externí odkaz:
http://arxiv.org/abs/2405.10169
Autor:
Moreira, A. R. P., Dong, Shi-Hai
In this research, we delve into the localization patterns of fermionic fields within a braneworld setting, employing a modified gravity model denoted as $f(Q)$. Our investigation revolves around two specific models, $f_1(Q)=Q+kQ^n$ and $f_2(Q)=Q+k_1Q
Externí odkaz:
http://arxiv.org/abs/2401.02201
Autor:
Moreira, A. R. P., Almeida, C. A. S.
Publikováno v:
General Relativity and Gravitation, 55 (2023) 89
In this work, the influence of the boundary term $B$ is analyzed in a string-like thick brane scenario in the gravity context $f(T, B)$. For that, three models of $f(T, B)$ are proposed, i.e., $f_1(T, B)=T+k{B}^{n}$, $f_2(T, B)=T+k(-T+B)^{n}$ and $f_
Externí odkaz:
http://arxiv.org/abs/2311.07898
Publikováno v:
Phys. Lett. B, (2023), 138029
This paper aims to investigate the localization of the five-dimensional spinor field known as Elko (dual-helicity eigenspinors of the charge conjugation operator) by employing a Yukawa-like geometrical coupling in which the Elko field is non-minimall
Externí odkaz:
http://arxiv.org/abs/2302.06545
Publikováno v:
Eur. Phys. J. C 83, 388 (2023)
In the context of $f(T,B)$ modified teleparallel gravity, we investigate the influence of torsion scalar $T$ and boundary term $B$ on the confinement of both the gauge vector and Kalb-Ramond fields. Both fields require a suitable coupling in five-dim
Externí odkaz:
http://arxiv.org/abs/2302.02938
Autor:
Moreira, Diego R., Shrivastava, Harish
We study existence and regularity of weak solutions for the following PDE $$ -\dive(A(x,u)|\nabla u|^{p-2}\nabla u) = f(x,u),\;\;\mbox{in $B_1$}. $$ where $A(x,s) = A_+(x)\chi_{\{s>0\}}+A_-(x)\chi_{\{s\le 0\}}$ and $f(x,s) = f_+(x)\chi_{\{s>0\}}+f_-(
Externí odkaz:
http://arxiv.org/abs/2301.07949
In this research article, we use the Shannon's formalism to investigate the quantum information entropy of a particle trapped by the Aharonov-Bohm-type effect. For quantum information study, it is necessary to investigate the eigenstates of the quant
Externí odkaz:
http://arxiv.org/abs/2212.09208
In the teleparallel $f(T)$ gravity scenario, we consider a five-dimensional thick brane. This scenario is interesting because this theory can provide explanations for inflation, radiation, and dark matter under certain conditions. It is convenient to
Externí odkaz:
http://arxiv.org/abs/2212.08948