S. W. Hawking and G. Horowitz, “The Gravitational Hamiltonian, Action, Entropy and Surface Terms,” Classical and Quantum Gravity, Vol. 13, No. 6, 1996, pp. 1487- 1498. doi:10.1088/0264-9381/13/6/017

has been cited by the following article:

• 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.