Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Haximjan Abdusattar"'
Autor:
Haximjan Abdusattar, Shi-Bei Kong
Publikováno v:
Nuclear Physics B, Vol 1008, Iss , Pp 116719- (2024)
In this paper, within the framework of modified gravity involving a conformal scalar field, we investigate the Joule-Thomson expansion of the Friedmann-Robertson-Walker (FRW) universe to identify cooling and heating regions. We observe a divergence i
Externí odkaz:
https://doaj.org/article/e8c0acc0cb5743c8bb28cb0a7ea8fc9b
Autor:
Haximjan Abdusattar
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-19 (2023)
Abstract The P-V phase transition of the FRW (Friedmann-Robertson-Walker) universe with a perfect fluid has recently been investigated, revealing that the four critical exponents near the critical point are consistent with the values predicted by mea
Externí odkaz:
https://doaj.org/article/0af6eba8a4d6455da59ae08743ff6376
Autor:
Haximjan Abdusattar
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 7, Pp 1-9 (2023)
Abstract In this work, we investigate the thermodynamic stability and phase structure of AdS black holes with either a Maxwell field (where we revisit past studies) or a phantom field. We conduct a comprehensive analysis of the free energy and temper
Externí odkaz:
https://doaj.org/article/6ed3d166f7fc4fb6b42a2c543e61d43f
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:
INSPIRE-HEP
We find phase transitions and critical phenomena of the FRW (Friedmann-Robertson-Walker) universe in the framework of an effective scalar-tensor theory that belongs to the Horndeski class. We identify the thermodynamic pressure (generalized force) $P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b47e1fbc99450d7629c1ab45dcabe42
http://arxiv.org/abs/2301.01938
http://arxiv.org/abs/2301.01938
Autor:
Haximjan Abdusattar
Publikováno v:
Physics of the Dark Universe. 40:101228
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5e0842097b2d3968f68d5775e77c71d
https://doi.org/10.1016/j.dark.2023.101228
https://doi.org/10.1016/j.dark.2023.101228
Publikováno v:
Nuclear Physics
We study the thermodynamic properties of Friedmann-Robertson-Walker (FRW) universe in the brane world scenario, concentrating on the Randall-Sundrum II model. We obtain the first law of thermodynamics for the FRW universe. The Misner-Sharp energy is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::921e3801d089bfbc654e3e600c7ee389
In this paper, we investigate the thermodynamics especially the Hawking-Page-like phase transition of the McVittie space-time. We formulate the first law of thermodynamics for the McVittie black hole, and find that the work density $W$ of the perfect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b2fe544dd6df52fc666a0a601feb14a