Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mokhtar Hassaïne"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 10, Pp 1-16 (2024)
Abstract This paper investigates Buchdahl transformations within the framework of Einstein and Einstein-Scalar theories. Specifically, we establish that the recently proposed Schwarzschild–Levi-Civita spacetime can be obtained by means of a Buchdah
Externí odkaz:
https://doaj.org/article/57446810153f400a9ca4da622c863034
Autor:
Olaf Baake, Mokhtar Hassaine
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 7, Pp 1-12 (2021)
Abstract In five dimensions we consider a general shift symmetric and parity preserving scalar tensor action that contains up to second order covariant derivatives of the scalar field. A rotating stealth black hole solution is constructed where the m
Externí odkaz:
https://doaj.org/article/8166e35abb294988add4e6969ab49d5e
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-26 (2021)
Abstract Starting from a recently constructed stealth Kerr solution of higher order scalar tensor theory involving scalar hair, we analytically construct disformal versions of the Kerr spacetime with a constant degree of disformality and a regular sc
Externí odkaz:
https://doaj.org/article/8b5f680664d144268600e9c3f4444791
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 4, Pp 1-18 (2017)
Abstract We construct a quintic quasi-topological gravity in five dimensions, i.e. a theory with a Lagrangian containing ℛ 5 $$ {\mathrm{\mathcal{R}}}^5 $$ terms and whose field equations are of second order on spherically (hyperbolic or planar) sy
Externí odkaz:
https://doaj.org/article/91c92269b792488aac0a63cda411eed7
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 4, Pp 1-26 (2017)
Abstract We show that the semiclassical entropy of D−dimensional rotating (an)isotropic black holes with planar horizon can be successfully computed according to a Cardy-like formula. This formula does not refer to any central charges but instead i
Externí odkaz:
https://doaj.org/article/55a3cb10352f43ddbc85fb4ed61f2745
Autor:
Mokhtar Hassaine, Jorge Zanelli
'The authors provide an up-to-date, well-organised background and essential elements of supergravity notions as well as all relevant aspects of Chern-Simons forms in gravitation. The book is a self-contained, informative, and much-needed broad introd
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 5, Pp 1-11 (2019)
Abstract In this paper, we construct four-dimensional charged black branes of a nonminimally coupled and self-interacting scalar field. In addition to the scalar and Maxwell fields, the model involves two axionic fields homogeneously distributed alon
Externí odkaz:
https://doaj.org/article/8d20b5aeb32546ad83c52fc709abb074
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 3, Pp 1-12 (2019)
Abstract We consider Einstein gravity with a negative cosmological constant endowed with distinct matter sources. The different models analyzed here share the following two properties: (1) they admit static symmetric solutions with planar base manifo
Externí odkaz:
https://doaj.org/article/7a1e6e15f4ae4851b37b6cecd7898685
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 5, Pp 1-24 (2017)
Abstract We study a massive vector tensor theory that acquires mass via a standard Proca term but also via a higher order term containing an explicit coupling to curvature. We find static solutions that are asymptotically flat, adS or Lifshitz black
Externí odkaz:
https://doaj.org/article/7d9b0177f7124551a440411fa6c3fa7d
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 8, Pp 1-1 (2019)
The original version of this article unfortunately contains a mistake: The affiliation of the first author Adolfo Cisterna is incorrectly given as “Central de Chile, Vicerrectoria académica, Toesca 1783, Santiago, Chile”.
Externí odkaz:
https://doaj.org/article/3dbd69fbd2154e859af55e7ce2e4ca87