Topological deformation of isolated horizons
| dc.creator | Liko, Tomas | |
| dc.date | 2007-05-10 | |
| dc.date | 2008-03-05 | |
| dc.date.accessioned | 2026-07-07T11:41:06Z | |
| dc.date.available | 2026-07-07T11:41:06Z | |
| dc.description | We show that the Gauss-Bonnet term can have physical effects in four dimensions. Specifically, the entropy of a black hole acquires a correction that is proportional to the Euler characteristic of the cross sections of the horizon. While this term is constant for a single black hole, it will be a non-trivial function for a system with dynamical topologies such as black-hole mergers: it is shown that for certain values of the GB parameter, the second law of black-hole mechanics can be violated. | |
| dc.description | 8 pages; 1 figure; v2: 9 pages; some comments added at the end; 3 references added; v3: minor corrections; v4: some corrections; discussion added on black-hole mergers and violations of the second law; 2 references added; v5: minor corrections; v6: final corrections to match PRD version | |
| dc.identifier | https://arxiv.org/abs/0705.1518 | |
| dc.identifier | http://arxiv.org/abs/0705.1518 | |
| dc.identifier | Phys.Rev.D77:064004,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.77.064004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200421 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Topological deformation of isolated horizons | |
| dc.type | text |