%0 Journal Article
%T Semiclassical Loop Quantum Gravity and Black Hole Thermodynamics
%A Arundhati Dasgupta
%J Symmetry, Integrability and Geometry : Methods and Applications
%D 2013
%I National Academy of Science of Ukraine
%X 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.
%K black holes
%K loop quantum gravity
%K coherent states
%K entanglement entropy
%U http://dx.doi.org/10.3842/SIGMA.2013.013