669 citations
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5 papers · 1 filter
Power-law corrections to black-hole entropy via entanglement
Saurya Das, S. Shankaranarayanan, Sourav Sur
We consider the entanglement between quantum field degrees of freedom inside and outside the horizon as a plausible source of black-hole entropy. We examine possible deviations of…
Power-law corrections to entanglement entropy of horizons
Saurya Das, S. Shankaranarayanan, Sourav Sur
We 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 t…
Where are the black hole entropy degrees of freedom ?
Saurya Das, S. Shankaranarayanan
Understanding 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 ke…
Randall-Sundrum with Kalb-Ramond field: return of the hierarchy problem?
Saurya Das, Anindya Dey, Soumitra SenGupta
We show that when the antisymmetric Kalb-Ramond field is included in the Randall-Sundrum scenario, although the hierarchy problem can be solved, it requires an extreme fine tuning…
Entanglement as a source of black hole entropy
Saurya Das, S. Shankaranarayanan
We review aspects of black hole thermodynamics, and show how entanglement of a quantum field between the inside and outside of a horizon can account for the area-proportionality of…