New Coordinates for de Sitter Space and de Sitter Radiation

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dc.creatorParikh, Maulik K.
dc.date2002-04-14
dc.date2002-10-02
dc.date.accessioned2026-07-07T11:32:01Z
dc.date.available2026-07-07T11:32:01Z
dc.descriptionWe introduce a simple coordinate system covering half of de Sitter space. The new coordinates have several attractive properties: the time direction is a Killing vector, the metric is smooth at the horizon, and constant-time slices are just flat Euclidean space. We demonstrate the usefulness of the coordinates by calculating the rate at which particles tunnel across the horizon. When self-gravitation is taken into account, the resulting tunneling rate is only approximately thermal. The effective temperature decreases through the emission of radiation.
dc.descriptionLaTeX, 10 pages; v2. references added; v3. minor sign errors fixed, reference added, journal version
dc.identifierhttps://arxiv.org/abs/hep-th/0204107
dc.identifierhttp://arxiv.org/abs/hep-th/0204107
dc.identifierPhys.Lett.B546:189-195,2002
dc.identifierdoi:10.1016/S0370-2693(02)02701-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197458
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleNew Coordinates for de Sitter Space and de Sitter Radiation
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