Where are the black hole entropy degrees of freedom ?

dc.creatorDas, Saurya
dc.creatorShankaranarayanan, S.
dc.date2007-03-14
dc.date2007-10-04
dc.date.accessioned2026-07-07T11:21:53Z
dc.date.available2026-07-07T11:21:53Z
dc.descriptionUnderstanding the area-proportionality of black hole entropy (the `Area Law') from an underlying fundamental theory has been one of the goals of all models of quantum gravity. A key question that one asks is: where are the degrees of freedom giving rise to black hole entropy located? Taking the point of view that entanglement between field degrees of freedom inside and outside the horizon can be a source of this entropy, we show that when the field is in its ground state, the degrees of freedom near the horizon contribute most to the entropy, and the area law is obeyed. However, when it is in an excited state, degrees of freedom far from the horizon contribute more significantly, and deviations from the area law are observed. In other words, we demonstrate that horizon degrees of freedom are responsible for the area law.
dc.description5 pages, 3 eps figures, uses Revtex4, References added, Minor changes to match published version
dc.identifierhttps://arxiv.org/abs/gr-qc/0703082
dc.identifierhttp://arxiv.org/abs/gr-qc/0703082
dc.identifierClass.Quant.Grav.24:5299-5306,2007
dc.identifierdoi:10.1088/0264-9381/24/20/022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194396
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.subjectQuantum Physics
dc.titleWhere are the black hole entropy degrees of freedom ?
dc.typetext

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