Zobrazeno 1 - 10
of 553
pro vyhledávání: '"Brito, F. P."'
Publikováno v:
Phys. Rev. D 110, 064079 (2024)
Observational data of the Sagittarius A* (Sgr A*) shadow released by the Event Horizon Telescope (EHT) are used to investigate eventual deviations in the black hole shadow radius, aiming to seek physics beyond the Standard Model (SM) coming from extr
Externí odkaz:
http://arxiv.org/abs/2407.04609
Autor:
Santos, Fabiano F., Brito, F. A.
Publikováno v:
Advances in High Energy Physics (2024)
This work presents the application of the q-algebra in the glueballs spectrum. This algebra is implemented through Jackson derivatives in a Schr\"odinger-like equation resulting from the gravity fluctuations around the braneworld scenario in five dim
Externí odkaz:
http://arxiv.org/abs/2403.16171
In this paper, we analysis the dynamics, at the quantum level, of the self-dual field minimally coupled to bosons with Lorentz symmetry breaking. We quantize the model by applying the Dirac bracket canonical quantization procedure. In addition, we te
Externí odkaz:
http://arxiv.org/abs/2403.10224
In this study, we consider the four-dimensional Maxwell electrodynamics extended with CPT-even Myers-Pospelov Lorentz-violating dimension-six operators to investigate the associated two-dimensional properties in the context of quantum vacuum fluctuat
Externí odkaz:
http://arxiv.org/abs/2402.13972
In this work, we consider the dynamics of the self-induced collapse of the tachyon wave function in inflationary scenarios. We analyze the modifications on the power spectrum by considering the \beta-exponential potential, whose parameters have updat
Externí odkaz:
http://arxiv.org/abs/2402.12351
In this work, we study quantum heat transport in a single trapped ion, driven by laser excitation and coupled to thermal reservoirs operating at different temperatures. Our focus lies in understanding how different laser coupling scenarios impact the
Externí odkaz:
http://arxiv.org/abs/2402.03937
We consider $f(R,T)$ modified theories of gravity in the context of string theory inspired dilaton gravity. We deal with a specific model that under certain conditions describes the late time Universe in accord with observational data in modern cosmo
Externí odkaz:
http://arxiv.org/abs/2312.14899
In the present work, we study the scattering for a black hole described by the canonical acoustic metric with Lorentz violation using asymptotic and numerical methods. In this scenario, we also check the effects of quasinormal modes and the acoustic
Externí odkaz:
http://arxiv.org/abs/2312.14258
Publikováno v:
Annals Phys. 470, 169805 (2024)
In this work, we consider a propagating scalar field on Kaluza-Klein-type cosmological background. It is shown that this geometrical description of the Universe resembles - from a Hamiltonian standpoint - a damped harmonic oscillator with mass and fr
Externí odkaz:
http://arxiv.org/abs/2308.05058
Publikováno v:
NPB, 116617 (2024)
In this paper, we consider the Schwarzschild-Tangherlini black hole to investigate the process of scalar wave scattering by the black hole in a spacetime of (d + 1) dimensions and also with the generalized uncertainty principle (GUP). In this scenari
Externí odkaz:
http://arxiv.org/abs/2307.09536