Power-law corrections to entanglement entropy of horizons

Simple item page
dc.creatorDas, Saurya
dc.creatorShankaranarayanan, S.
dc.creatorSur, Sourav
dc.date2007-05-15
dc.date2008-02-28
dc.date.accessioned2026-07-07T11:56:50Z
dc.date.available2026-07-07T11:56:50Z
dc.descriptionWe re-examine the idea that the origin of black-hole entropy may lie in the entanglement of quantum fields between inside and outside of the horizon. Motivated by the observation that certain modes of gravitational fluctuations in a black-hole background behave as scalar fields, we compute the entanglement entropy of such a field, by tracing over its degrees of freedom inside a sphere. We show that while this entropy is proportional to the area of the sphere when the field is in its ground state, a correction term proportional to a fractional power of area results when the field is in a superposition of ground and excited states. The area law is thus recovered for large areas. Further, we identify location of the degrees of freedom that give rise to the above entropy.
dc.description16 pages, 6 figures, to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0705.2070
dc.identifierhttp://arxiv.org/abs/0705.2070
dc.identifierPhys.Rev.D77:064013,2008
dc.identifierdoi:10.1103/PhysRevD.77.064013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205671
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.subjectQuantum Physics
dc.titlePower-law corrections to entanglement entropy of horizons
dc.typetext

Files

Collections

arXiv