a New Approach to Black Hole Microstates
Abstract
If one encodes the gravitational degrees of freedom in an orthonormal frame field, there is a very natural first-order action one can write down (which in four dimensions is known as the Goldberg action). In this letter we will show that this action contains a boundary action for certain microscopic degrees of freedom living at the horizon of a black hole, and argue that these degrees of freedom hold great promise for explaining the microstates responsible for black hole entropy, in any number of space-time dimensions. This approach faces many interesting challenges, both technical and conceptual.
- Publication:
-
Modern Physics Letters A
- Pub Date:
- 1998
- DOI:
- 10.1142/S0217732398001960
- arXiv:
- arXiv:gr-qc/9806004
- Bibcode:
- 1998MPLA...13.1875E
- Keywords:
-
- General Relativity and Quantum Cosmology
- E-Print:
- 6 pages, 0 figures, LaTeX