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Where are the degrees of freedom responsible for black-hole entropy?

MPG-Autoren

Shankaranarayanan,  Subramaniam
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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das.pdf
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Zitation

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.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-632B-8
Zusammenfassung
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.