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**Time Evolution of Horizons** ()

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.

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Dasgupta, A. (2012) Time Evolution of Horizons.

*Journal of Modern Physics*,**3**, 1289-1297. doi: 10.4236/jmp.2012.329166.Conflicts of Interest

The authors declare no conflicts of interest.

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