Rapidly rotating neutron stars in $$f(R,T)=R+2 \lambda T$$ f ( R , T ) = R + 2 λ T gravity

Autor: F. M. da Silva, L. C. N. Santos, C. E. Mota, T. O. F. da Costa, J. C. Fabris

Publikováno v: European Physical Journal C: Particles and Fields, Vol 83, Iss 4, Pp 1-14 (2023)

Abstract In this work, we study the influence of f(R, T) gravity on rapidly rotating neutron stars. First we discuss the main aspects of this modified theory of gravity where the gravitational Lagrangian is an arbitrary function of the Ricci scalar R

Externí odkaz: https://doaj.org/article/34ad2484533248c8ac9f923039613e54

Klein–Gordon Oscillator in a Topologically Nontrivial Space-Time

Autor: L. C. N. Santos, C. E. Mota, C. C. Barros

Publikováno v: Advances in High Energy Physics, Vol 2019 (2019)

In this study, we analyze solutions of the wave equation for scalar particles in a space-time with nontrivial topology. Solutions for the Klein–Gordon oscillator are found considering two configurations of this space-time. In the first one, the S1�

Externí odkaz: https://doaj.org/article/7ffdebb008894beda037bd4e62fde5f7

Non-inertial effects on a non-relativistic quantum harmonic oscillator in the presence of a screw dislocation

Autor: L. C. N. Santos, F. M. Da Silva, C. E. Mota, V. B. Bezerra

In this paper, we investigate non-inertial effects induced by a rotating frame on a non-relativistic quantum harmonic oscillator as well as of the topology associated to a screw dislocation, which corresponds to a distortion of a vertical line into a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8af49929c13861785ccbabe3ce433bd3
http://arxiv.org/abs/2210.02559

Effects of modified dispersion relations on free Fermi gas: equations of state and applications in astrophysics

Autor: Guilherme Grams, Franciele M. da Silva, L. C. N. Santos, Clésio E. Mota, Iarley P. Lobo

Publikováno v: Physics Letters B, Vol 822, Iss, Pp 136684-(2021)
Physics Letters
Phys.Lett.B
Phys.Lett.B, 2021, 822, pp.136684. ⟨10.1016/j.physletb.2021.136684⟩

International audience; Deformed dispersion relations are considered in the study of equations of state of Fermi gas with applications to compact objects. Different choices of deformed energy relations are used in the formulation of our model. As a f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6565ea3464323bdfd5c6e459ece4331

Scalar bosons with Coulomb potentials in a cosmic string background: scattering and bound states

Autor: Luis B. Castro, Franciele M. da Silva, L. C. N. Santos, Francisco A. Cruz Neto

Publikováno v: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP

The relativistic quantum motion of scalar bosons under the influence of a full vector (minimal $A^{\mu}$ and nonminimal $X^{\mu}$) and scalar ($V_{s}$) interactions embedded in the background of a cosmic string is explored in the context of the Klein

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::191030fae25ad7d43d095191fb76b73a