Horizon surface gravity as 2d geodesic expansion
| dc.creator | Jacobson, Ted | |
| dc.creator | Parentani, Renaud | |
| dc.date | 2008-06-10 | |
| dc.date | 2008-08-13 | |
| dc.date.accessioned | 2026-07-07T11:51:32Z | |
| dc.date.available | 2026-07-07T11:51:32Z | |
| dc.description | The surface gravity of any Killing horizon, in any spacetime dimension, can be interpreted as a local, two-dimensional expansion rate seen by freely falling observers when they cross the horizon. Any two-dimensional congruence of geodesics invariant under the Killing flow can be used to define this expansion, provided that the observers have unit Killing energy. | |
| dc.description | 7 pages; v2: 8 pages, derivation of (8) in section 3 streamlined, added new expression for the 2d expansion, minor editing | |
| dc.identifier | https://arxiv.org/abs/0806.1677 | |
| dc.identifier | http://arxiv.org/abs/0806.1677 | |
| dc.identifier | Class.Quant.Grav.25:195009,2008 | |
| dc.identifier | doi:10.1088/0264-9381/25/19/195009 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203930 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Horizon surface gravity as 2d geodesic expansion | |
| dc.type | text |