Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Iarley P. Lobo"'
Autor:
Iarley P. Lobo
Publikováno v:
Physics Letters B, Vol 855, Iss , Pp 138864- (2024)
Based on deformed translations in the κ-anti-de Sitter algebra, we derive a delay in the time of detection between a soft and a hard photon, which are simultaneously emitted at a distant event, to first order in the quantum gravity parameter. In the
Externí odkaz:
https://doaj.org/article/a5c0ad36642146a881d7ff0af8498033
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
Publikováno v:
Physics Letters B, Vol 835, Iss , Pp 137559- (2022)
We propose a sequence of steps and a generic transformation for connecting common thermodynamic quantities considered in asymptotically anti-de Sitter black hole thermodynamics in the bulk and those that are appropriate for CFT thermodynamics in the
Externí odkaz:
https://doaj.org/article/c6855ff9133645b2a2f578db93be4d3e
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
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 5, Pp 1-11 (2020)
Abstract We show that the definition of proper time for Weyl-invariant space-times given by Perlick naturally extends to spaces with arbitrary non-metricity. We then discuss the relation between this generalized proper time and the Ehlers–Pirani–
Externí odkaz:
https://doaj.org/article/4b4938f5314342bdb28c7c5c5b36d746
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 3, Pp 1-10 (2020)
Abstract We analyze how the hypotheses of Penrose’s singularity theorem (1965) are modified by the action of disformal transformations (defined in terms of light-like vectors) upon a given space-time metric. In particular, we investigate the transf
Externí odkaz:
https://doaj.org/article/5438cd1efd3740e29e32353f12ad1e26
Autor:
Moises Rojas, Iarley P. Lobo
Publikováno v:
Universe, Vol 9, Iss 2, p 71 (2023)
We consider the effect of a thermal bath on quantum correlations induced by the gravitational interaction in the weak field limit between two massive cat states, called gravitational cat (gravcat) states. The main goal of this paper is to provide a g
Externí odkaz:
https://doaj.org/article/09f6d2ce4f3d43fc852ff210fc9ab0e1
Publikováno v:
Nuclear Physics B, Vol 972, Iss , Pp 115568- (2021)
We analyze the effect of Planck-scale modified radiation equation of state on the Reissner-Nodström-anti-de Sitter black hole inspired by Kiselev's ansatz. Deformed thermodynamic quantities are found, phase transitions and black holes as heat engine
Externí odkaz:
https://doaj.org/article/b4e5408088584cc685aa48f29c2255ae