Area law corrections from state counting and supergravity. (English) Zbl 0952.81025
Summary: Modifications of the Bekenstein-Hawking area law for black holes are crucial in order to find agreement between the microscopic entropy based on state counting and the macroscopic entropy based on an effective field theory computation. We discuss this and related issues for the case of four-dimensional \(N= 2\) supersymmetric black holes. We also briefly comment on the state counting for \(N= 4\) and 8 black holes.
MSC:
| 81T20 | Quantum field theory on curved space or space-time backgrounds |
| 81T30 | String and superstring theories; other extended objects (e.g., branes) in quantum field theory |
| 83E30 | String and superstring theories in gravitational theory |
| 83C57 | Black holes |
