Hawking Radiation and Entropy from Horizon Degrees of Freedom
arXiv:1011.0624 · doi:10.1016/j.nuclphysb.2012.01.011
Abstract
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.
7 pages. v6: Final version accepted for publication in Nucl. Phys. B. arXiv admin note: substantial text overlap with arXiv:1011.0623
References in corpus (6)
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- Dynamics of Diffeomorphism Degrees of Freedom at a Horizon
- Conformal Gravity from AdS/CFT mechanism
- Conformal entropy from horizon states: Solodukhin's method for spherical, toroidal, and hyperbolic black holes in D-dimensional anti-de Sitter spacetimes
- Effective Action, Boundary Conditions, and Virasoro Algebra for AdS