Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Ya-Peng Hu"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 11, Pp 1-9 (2023)
Abstract We present a novel interpretation of the thermodynamics of perfect fluid dark matter (PFDM) black hole based on Misner–Sharp energy and then investigate its evaporation behavior. We find that the ratio between dark sector initial density a
Externí odkaz:
https://doaj.org/article/3a1362d157384effbc52b5c454926094
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 11, Pp 1-19 (2023)
Abstract In this paper, we investigate the shadows and rings of the charged Horndeski black hole illuminated by accretion flow that is both geometrically and optically thin. We consider two types of accretion models: spherical and thin-disk accretion
Externí odkaz:
https://doaj.org/article/fba4f849b2a340a8a2ce57f2448d5ae2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 4, Pp 1-11 (2023)
Abstract We investigate the gravitational lensing effect around a spherically symmetric black hole, whose metric is obtained from the Einstein field equation with electric charge and perfect-fluid dark matter contributing to its energy-momentum tenso
Externí odkaz:
https://doaj.org/article/2a9a939231564053a8988e0152bc4c8e
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-19 (2022)
Abstract We make a first principle study of gravitational pressure in cosmic thermo- dynamics. The pressure is directly derived from the unified first law, in fact the Einstein field equation in spherically symmetric spacetime. By using this pressure
Externí odkaz:
https://doaj.org/article/418567ceb0364621bebdc99f72811471
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 11, Pp 1-9 (2022)
Abstract We define thermodynamic pressure P by work density W as the conjugate quantity of thermodynamic volume V from field equation. We derive the equations of state P=P(V, T) for the Friedmann–Robertson–Walker (FRW) universe in Einstein gravit
Externí odkaz:
https://doaj.org/article/b1179b504ba548fa8e477e0ab6b1c74a
Publikováno v:
Nuclear Physics B, Vol 987, Iss , Pp 116091- (2023)
We study the thermodynamic properties of the Friedmann-Robertson-Walker (FRW) universe in the brane world scenario, concentrating on the Randall-Sundrum II model. From the first law of thermodynamics for the FRW universe, we find that the work densit
Externí odkaz:
https://doaj.org/article/22b5babe7c2645b9bbf2d92737072207
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 4, Pp 1-9 (2021)
Abstract Einstein–Gauss–Bonnet theory is a string-generated gravity theory when approaching the low energy limit. By introducing the higher order curvature terms, this theory is supposed to help to solve the black hole singularity problem. In thi
Externí odkaz:
https://doaj.org/article/ac6f67fae1684de4a40688f65798b271
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 11, Pp 1-9 (2020)
Abstract In this paper, the holographic p-wave superfluid model with charged complex vector field is studied in dRGT massive gravity beyond the probe limit. The stability of p-wave and p + ip solutions are compared in the grand canonical ensemble. Th
Externí odkaz:
https://doaj.org/article/751d41420c49415c974006a2bb838024
Publikováno v:
Physics Letters B, Vol 822, Iss , Pp 136661- (2021)
The P-V phase transition and critical behavior in the extended phase space of asymptotic Anti-de Sitter (AdS) black holes have been widely investigated, in which four critical exponents around critical point are found to be consistent with values in
Externí odkaz:
https://doaj.org/article/d918d3c4167b46629cbab63c36797305
Publikováno v:
Physics Letters B, Vol 822, Iss , Pp 136683- (2021)
Gravitational lensing is one of the most impressive celestial phenomena, which has interesting behaviors in its strong field limit. Near such limit, Bozza finds that the deflection angle of light is well-approximated by a logarithmic term and a const
Externí odkaz:
https://doaj.org/article/dec5b537bce64948afcea0e2e6c50b3e