Hawking Radiation and Entropy from Horizon Degrees of Freedom

Details Hawking Radiation and Entropy from Horizon Degrees of Freedom Hawking Radiation and Entropy from Horizon Degrees of Freedom

2010-11-02

arxiv.org/abs/1011.0624v5

Nucl. Phys. B858 (2012), pp. 214-231

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages. v5: Sec. 2 expanded, improved calculations in Sec. 3

Scientific paper

10.1016/j.nuclphysb.2012.01.011

We study the thermodynamic properties of horizons using the dynamical description of the gravitational degrees of freedom at a horizon found in a previous work. We use the action of the horizon degrees of freedom to posit an ansatz Liouville action in the near-horizon region, and calculate the horizon entropy using the Cardy formula. We also couple the gravitational degrees of freedom at the horizon to a classical scalar background, and show that Hawking radiation is produced.

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