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相关论文: Black Hole Entropy Function and the Attractor Mech…

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Using the Sen's entropy function formalism, we compute the entropy for the extremal dyonic black hole solutions of theories in the presence of dilaton field coupled to the field strength and a dilaton potential. We solve the attractor…

高能物理 - 理论 · 物理学 2016-09-07 Prieslei Goulart

We apply Sen's entropy formalism to the study of the near horizon geometry and the entropy of asymptotically AdS black holes in gauged supergravities. In particular, we consider non-supersymmetric electrically charged black holes with AdS_2…

高能物理 - 理论 · 物理学 2009-11-11 Jose F. Morales , Henning Samtleben

In this paper we elaborate on the relation between the entropy formula of Wald and the "entropy function" method proposed by A. Sen. For spherically symmetric extremal black holes, it is shown that the expression of extremal black hole…

高能物理 - 理论 · 物理学 2008-11-26 Rong-Gen Cai , Li-Ming Cao

The entropy for two-dimensional black holes is obtained through the entropy function with the condition that the geometry approaches an $AdS_2$ spacetime in the near horizon limit. It is shown that the entropy is universal and proportional…

高能物理 - 理论 · 物理学 2010-10-27 Seungjoon Hyun , Wontae Kim , John J. Oh , Edwin J. Son

We use the relation between extremal black hole solutions in five- and in four-dimensional N=2 supergravity theories with cubic prepotentials to define the entropy function for extremal black holes with one angular momentum in five…

高能物理 - 理论 · 物理学 2010-10-27 Gabriel Lopes Cardoso , Johannes M. Oberreuter , Jan Perz

The entropy and the attractor equations for static extremal black hole solutions follow from a variational principle based on an entropy function. In the general case such an entropy function can be derived from the reduced action evaluated…

高能物理 - 理论 · 物理学 2010-10-27 G. L. Cardoso , B. de Wit , S. Mahapatra

There is a general scaling argument that shows that the entropy of a small black hole, representing a half-BPS excitation of an elementary heterotic string in any dimension, agrees with the statistical entropy up to an overall numerical…

高能物理 - 理论 · 物理学 2009-11-11 Ashoke Sen

Based on the entropy function formalism, we consider the extremal Kerr-(anti-)de Sitter black holes in 4-dimensions. Solving differential equations exactly, which are obtained by extremizing the entropy function, we find agreement of the…

高能物理 - 理论 · 物理学 2014-11-18 Jin-Ho Cho , Yumi Ko , Soonkeon Nam

We use equivariant localization to construct off-shell entropy functions for supersymmetric black holes in $\mathcal{N}=2$, $D=4$ gauged supergravity coupled to matter. This allows one to compute the black hole entropy without solving the…

高能物理 - 理论 · 物理学 2024-12-16 Pietro Benetti Genolini , Jerome P. Gauntlett , Yusheng Jiao , Alice Lüscher , James Sparks

By making use of the entropy function formalism we study the generalized attractor equations in the four dimensional N=2 supergravity in presence of higher order corrections. This result might be used to understand a possible ensemble one…

高能物理 - 理论 · 物理学 2009-11-11 Mohsen Alishahiha , Hajar Ebrahim

Using the Sen's mechanism we calculate the entropy for an $AdS_{2}\times S^{d-2}$ extremal and static black hole in four dimensions, with higher derivative terms that comes from a three parameter non-minimal Einstein-Maxwell theory. The…

高能物理 - 理论 · 物理学 2012-01-17 A. Ulacia Rey

We start from a generic metric which describes four dimensional stationary black holes in an arbitrary theory of gravity and show that the AdS_2 part of the near horizon geometry is a consequence of the double-horizon limit and finiteness .…

高能物理 - 理论 · 物理学 2008-11-26 H. Arfaei , R. Fareghbal

We consider general black holes in D=5, N=2 supergravity coupled to vector multiplets, and discuss the issue of microstate counting from various viewpoints. The statistical entropy is computed for the near-extremal case using the central…

高能物理 - 理论 · 物理学 2009-10-31 S. Cacciatori , D. Klemm , W. A. Sabra , D. Zanon

We generalise the work of 1810.11442 for the case of AdS$_7$/CFT$_6$. Starting from the 2-equivalent charge, 3-equivalent rotation non-extremal black-hole solution in 7D gauged supergravity, we consider the supersymmetric and then the…

高能物理 - 理论 · 物理学 2020-01-29 Gergely Kántor , Constantinos Papageorgakis , Paul Richmond

Black hole entropy is studied for an exactly solvable model of two-dimensional gravity\cite{rst1}, using recently developed Noether charge techniques\cite{wald1}. This latter approach is extended to accomodate the non-local form of the…

高能物理 - 理论 · 物理学 2010-11-01 Robert C. Myers

We study the entropy of non-supersymmetric extremal black holes which exhibit attractor mechanism by making use of the entropy function. This method, being simple, can be used to calculate corrections to the entropy due to higher order…

高能物理 - 理论 · 物理学 2009-11-11 Mohsen Alishahiha , Hajar Ebrahim

We find the entropy functions of supersymmetric black holes in AdS$_4$ and AdS$_6$ with electric charges and angular momenta. Extremizing these functions, one obtains the entropies and the chemical potentials of known analytic black hole…

高能物理 - 理论 · 物理学 2020-02-21 Sunjin Choi , Chiung Hwang , Seok Kim , June Nahmgoong

We prove that, in a general higher derivative theory of gravity coupled to abelian gauge fields and neutral scalar fields, the entropy and the near horizon background of a rotating extremal black hole is obtained by extremizing an entropy…

高能物理 - 理论 · 物理学 2010-04-06 Dumitru Astefanesei , Kevin Goldstein , Rudra P. Jena , Ashoke Sen , Sandip P. Trivedi

Wald's formula for black hole entropy, applied to extremal black holes, leads to the entropy function formalism. We manipulate the entropy computed this way to express it as the logarithm of the ground state degeneracy of a dual quantum…

高能物理 - 理论 · 物理学 2009-09-15 Ashoke Sen

We investigate five-dimensional static (non-)extremal black hole solutions in higher derivative Anti-de Sitter gravity theories with neutral scalars non-minimally coupled to gauge fields. We explicitly identify the boundary counterterms to…

高能物理 - 理论 · 物理学 2009-12-10 Dumitru Astefanesei , Nabamita Banerjee , Suvankar Dutta
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