TITLE:
Time Evolution of Horizons
AUTHORS:
Arundhati Dasgupta
KEYWORDS:
Black Hole Physics; Quantum Gravity; Hawking Radiation; Loop Quantum Gravity; Coherent States
JOURNAL NAME:
Journal of Modern Physics,
Vol.3 No.9A,
September
28,
2012
ABSTRACT: Finding the origin of Hawking radiation has been a puzzle to researchers. Using a loop quantum gravity description of a black hole slice, a density matrix is defined using coherent states for space-times with apparent horizons. Evolving the density matrix using a semi-classical Hamiltonian in the frame of an observer outside the horizon gives the origin of Hawking radiation.