Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Valdir B Bezerra"'
Publikováno v:
Physics Letters B, Vol 848, Iss , Pp 138380- (2024)
We demonstrate a compatibility between the relativity principle and the clock postulate in deformed special relativity, by identifying the relevant deformed Lorentz transformations in position space between arbitrary frames. This result leads to a fi
Externí odkaz:
https://doaj.org/article/3dad5bd85dfa42bfb4f903415f731038
Autor:
Saulo Albuquerque, Valdir B. Bezerra, Iarley P. Lobo, Gabriel Macedo, Pedro H. Morais, Ernesto Rodrigues, Luis C. N. Santos, Gislaine Varão
Publikováno v:
Physics, Vol 5, Iss 1, Pp 90-115 (2023)
In this paper, we reviewtwo approaches that can describe, in a geometrical way, the kinematics of particles that are affected by Planck-scale departures, named Finsler and Hamilton geometries. By relying on maps that connect the spaces of velocities
Externí odkaz:
https://doaj.org/article/9a528c5d23ea499cb00f72ff9984a9dd
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 9, Pp 1-33 (2022)
Abstract Deformed relativistic kinematics is a framework which captures effects, that are expected from particles and fields propagating on a quantum spacetime, effectively. They are formulated in terms of a modified dispersion relation and a modifie
Externí odkaz:
https://doaj.org/article/e6a7acc168d042eebe6c3bcf5bf84202
Autor:
Clésio E. Mota, Luis C. N. Santos, Franciele M. da Silva, César V. Flores, Iarley P. Lobo, Valdir B. Bezerra
Publikováno v:
Universe, Vol 9, Iss 6, p 260 (2023)
In this work, we investigate the existence of neutron stars (NS) in the framework of f(T,T) gravity, where T is the torsion tensor and T is the trace of the energy–momentum tensor. The hydrostatic equilibrium equations are obtained, however, with p
Externí odkaz:
https://doaj.org/article/f7cb54f76ae6460ebe8c12f064c5650d
Autor:
Horst Stocker, Cesar Augusto Zen Vasconcellos, Valdir B Bezerra, Marcelo J Reboucas, Walter Greiner, Bardo E J Bodmann
This book presents scientific research on the central theme of new states of matter and new phenomena in the universe. The topics covered range from the big bang, through topics including the formation of exotic stars, black holes and the plasma of q
Publikováno v:
Universe, Vol 8, Iss 11, p 597 (2022)
In the present paper, we investigate thermal fluctuation corrections to the vacuum energy at zero temperature of a conformally coupled massless scalar field, whose modes propagate in the Einstein universe with a spherical boundary, characterized by b
Externí odkaz:
https://doaj.org/article/c43a5f323a934c609c443231176a0215
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 10, Pp 1-12 (2018)
Abstract We study the black hole thermodynamics in the presence of a string cloud matter distribution, considering a work term due to a variable cosmological “constant” in arbitrary dimensions. Then, we explore the criticality of the system and t
Externí odkaz:
https://doaj.org/article/be9f8104980e4f65a256de44a00c00ed
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 9, Pp 1-9 (2018)
Abstract Using the Tsallis generalized entropy, holographic hypothesis and also considering the Hubble horizon as the IR cutoff, we build a holographic model for dark energy and study its cosmological consequences in the Brans–Dicke framework. At f
Externí odkaz:
https://doaj.org/article/988728a3ace04741a06e2455c936c92e
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 6, Pp 1-11 (2018)
Abstract The aim of this work is to study the thermodynamics and spin current of a system corresponding to a black hole containing a global monopole in the context of Poincaré gravity theory which is an extension of general relativity, in the sense
Externí odkaz:
https://doaj.org/article/8aaedb5af2174a89afd7a7d196e84313
Publikováno v:
Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2021).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5cdefbce19746132d2f44af805f3e6e
https://doi.org/10.22323/1.406.0334
https://doi.org/10.22323/1.406.0334