Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김성원 | * |
dc.date.accessioned | 2018-05-02T08:15:55Z | - |
dc.date.available | 2018-05-02T08:15:55Z | - |
dc.date.issued | 2001 | * |
dc.identifier.issn | 0556-2821 | * |
dc.identifier.other | OAK-796 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/242834 | - |
dc.description.abstract | The brick-wall method based on thermal equilibrium at a large scale cannot be applied to cases out of equilibrium, such as nonstationary space-time with two horizons, for example, Vaidya-de Sitter space-time. We improve the brick-wall method and propose a thin-layer method. The entropies of scalar and spinor fields in Vaidya-de Sitter space-time are calculated by the thin-layer method. The condition of local equilibrium near the two horizons is used as a working postulate and is maintained for a black hole which evaporates slowly enough and whose mass is far greater than the Planck scale. There are two horizons in Vaidya-de Sitter space-time. We think that the total entropy is mainly attributed to the two layers near the two horizons. The entropy of a scalar field in Vaidya-de Sitter space-time is a linear sum of the area of the black hole horizon and that of the cosmological horizon. Thinking of Dirac equations in the Newman-Penrose formalism, there are four components of the wave functions F 1, F 2, G 1, and G 2. The total entropy is summed up from the entropies corresponding to the four components. On the same condition of the scalar field, the resulting entropy is 7/2 times that of the scalar field, and is also a linear sum of the area of the black hole horizon and that of the cosmological horizon. The difference from the stationary black hole is that the result relies on time-dependent cutoffs. ©2001 The American Physical Society. | * |
dc.language | English | * |
dc.title | Statistical entropies of scalar and spinor fields in Vaidya-de Sitter space-time computed by the thin-layer method | * |
dc.type | Article | * |
dc.relation.issue | 4 | * |
dc.relation.volume | 64 | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | Physical Review D | * |
dc.identifier.doi | 10.1103/PhysRevD.64.044025 | * |
dc.identifier.wosid | WOS:000170467600054 | * |
dc.identifier.scopusid | 2-s2.0-3543041115 | * |
dc.author.google | He F. | * |
dc.author.google | Zhao Z. | * |
dc.author.google | Kim S.-W. | * |
dc.contributor.scopusid | 김성원(55862533800;57194851458) | * |
dc.date.modifydate | 20240116125219 | * |