Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Behrouz Mirza"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 11, Pp 1-20 (2024)
Abstract We derive a class of Taub-NUT metrics in the presence of a scalar field (TNS) by using Ernst equations and potential, as well as using Ehlers transformations on the exact solutions that was recently introduced in Azizallahi et al. (Nucl Phys
Externí odkaz:
https://doaj.org/article/beb901d54a25489ebe4417e1934b9910
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 12, Pp 1-12 (2023)
Abstract We consider a class of three parameter static and axially symmetric metrics that reduce to the Janis–Newman–Winicour (JNW) and $$ \gamma $$ γ -metrics in certain limits of the parameters. We obtain rotating form of the metrics that are
Externí odkaz:
https://doaj.org/article/a5bb26c90d884e168698d0a491c5bd43
Publikováno v:
Nuclear Physics B, Vol 998, Iss , Pp 116414- (2024)
We investigate a class of three parameter metrics that contain both the γ-metric and Janis-Newman-Winicour (JNW) metric at special values of the parameters. To see the effect of the scalar field we derive some properties of this class of metrics suc
Externí odkaz:
https://doaj.org/article/e1d0752c4fa14ec0983ae31c24e2b5d7
Publikováno v:
Nuclear Physics B, Vol 993, Iss , Pp 116271- (2023)
This paper is devoted to investigating the nonlinear non-abelian Yang-Mills black holes. We consider three Born-Infeld, exponential, and logarithmic nonlinear Yang-Mills theories with SO(n−1) and SO(n−2,1) semi-simple groups, which n is the dimen
Externí odkaz:
https://doaj.org/article/c5588aab3a364892af74442de5cc7d95
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 5, Pp 1-13 (2021)
Abstract In this paper, we formulate two new classes of black hole solutions in higher curvature quartic quasitopological gravity with nonabelian Yang–Mills theory. At first step, we consider the SO(n) and $$SO(n-1,1)$$ S O ( n - 1 , 1 ) semisimple
Externí odkaz:
https://doaj.org/article/006e8e340df941d697066b7964527e28
Publikováno v:
Nuclear Physics B, Vol 978, Iss , Pp 115739- (2022)
We introduce five and higher dimensional γ-metrics. The higher dimensional metrics are exact solutions of the vacuum field equations and represent new types of singularities. For dimensions d>5 we have obtained γ-metrics in flat coordinates. We obt
Externí odkaz:
https://doaj.org/article/a35e3c45c30240428f40c104df4fd421
Publikováno v:
Frontiers in Physics, Vol 9 (2021)
In this paper, we investigate the thermal stability and Joule-Thomson expansion of some new quasitopological black hole solutions. We first study the higher-dimensional static quasitopological black hole solutions in the presence of Born-Infeld, expo
Externí odkaz:
https://doaj.org/article/6948c42b5cfb4d71bb387663fb72a861
Publikováno v:
Physics Letters B, Vol 780, Iss , Pp 240-245 (2018)
We propose a correspondence between an Anyon Van der Waals fluid and a (2+1) dimensional AdS black hole. Anyons are particles with intermediate statistics that interpolates between a Fermi–Dirac statistics and a Bose–Einstein one. A parameter α
Externí odkaz:
https://doaj.org/article/b96b5899fd7c4e9aaa00ca04bb459f7f
Publikováno v:
Nuclear Physics B, Vol 949, Iss , Pp - (2019)
We calculate the holographic entanglement entropy for the rotating cylindrical black holes in d+1 dimensions as perturbations over AdSd+1. This is accomplished based on the first order variation of the area functional in arbitrary dimensions. For the
Externí odkaz:
https://doaj.org/article/fbe8be8b31144c51b8e64742229c8448
Publikováno v:
Physics Letters B, Vol 799, Iss , Pp - (2019)
In this letter, we first redefine our formalism of the thermodynamic geometry introduced in [1,2] by changing coordinates of the thermodynamic space by means of Jacobian matrices. We then show that the geometrothermodynamics (GTD) is conformally rela
Externí odkaz:
https://doaj.org/article/9956d437decb4f5d9f4529b5bd72458c