| Entropy function and the attractor mechanism for spherically symmetric extremal black holes | |
| Cai, Rong-Gen; Cao, Li-Ming | |
| Corresponding Author | Cai, Rong-Gen(cairg@itp.ac.cn) |
| 2007-09-01 | |
| Source Publication | PHYSICAL REVIEW D
 |
| ISSN | 1550-7998 |
| Volume | 76Issue:6Pages:9 |
| Abstract | In this paper we elaborate on the relation between the entropy formula of Wald and the "entropy function" method proposed by Sen. For spherically symmetric extremal black holes, it is shown that the expression of extremal black hole entropy given by Sen can be derived from the general entropy definition of Wald, without the help of the treatment of rescaling the AdS(2) part of the near horizon geometry of extremal black holes. In our procedure, we only require that the surface gravity approaches to zero, and it is easy to understand the Legendre transformation of f, the integration of Lagrangian density on the horizon, with respect to the electric charges. Since the Noether charge form can be defined in an "off-shell" form, we define a corresponding entropy function, with which one can discuss the attractor mechanism for extremal black holes with scalar fields. |
| DOI | 10.1103/PhysRevD.76.064010 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS ID | WOS:000249786900048 |
| Publisher | AMER PHYSICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/126182 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Cai, Rong-Gen |
| Affiliation | 1.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 2.Grad Sch Chinese Acad Sci, Beijing 100039, Peoples R China |
| Recommended Citation GB/T 7714 | Cai, Rong-Gen,Cao, Li-Ming. Entropy function and the attractor mechanism for spherically symmetric extremal black holes[J]. PHYSICAL REVIEW D,2007,76(6):9. |
| APA | Cai, Rong-Gen,&Cao, Li-Ming.(2007).Entropy function and the attractor mechanism for spherically symmetric extremal black holes.PHYSICAL REVIEW D,76(6),9. |
| MLA | Cai, Rong-Gen,et al."Entropy function and the attractor mechanism for spherically symmetric extremal black holes".PHYSICAL REVIEW D 76.6(2007):9. |
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