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arXiv · 1203.5119

Semiclassical Loop Quantum Gravity and Black Hole Thermodynamics

Arundhati Dasgupta
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Abstract

In this article we explore the origin of black hole thermodynamics using semiclassical states in loop quantum gravity. We re-examine the case of entropy using a density matrix for a coherent state and describe correlations across the horizon due to SU(2) intertwiners. We further show that Hawking radiation is a consequence of a non-Hermitian term in the evolution operator, which is necessary for entropy production or depletion at the horizon. This non-unitary evolution is also rooted in formulations of irreversible physics.

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Arundhati Dasgupta. 2013-02-16. Semiclassical Loop Quantum Gravity and Black Hole Thermodynamics. https://doi.org/10.3842/sigma.2013.013

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