Where are the degrees of freedom responsible for black hole entropy?
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Date
2015-12-15
Authors
Das, Saurya
Shankaranarayanan, S.
Sur, Sourav
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Abstract
Considering the entanglement between quantum field degrees of freedom inside and outside the horizon
as a plausible source of black hole entropy, we address the question: where are the degrees of freedom that
give rise to this entropy located? When the field is in ground state, the black hole area law is obeyed and
the degrees of freedom near the horizon contribute most to the entropy. However, for excited state, or a
superposition of ground state and excited state, power-law corrections to the area law are obtained, and
more significant contributions from the degrees of freedom far from the horizon are shown.
Description
Sherpa Romeo green journal. Permission to archive author manuscript.
Keywords
Black hole entropy , Black holes , Scalar fields , Power-law corrections , Degrees of freedom
Citation
Das, S., Shankaranarayanan, S., & Sur, S. (2008). Where are the degrees of freedom responsible for black-hole entropy? Canadian Journal of Physics, 86(4), 653-658. https://doi.org/10.1139/p07-183.