Gauge Theory Description of Black Hole Evaporation
Cancelled
Event details
| Date | 09.09.2016 |
| Hour | 14:00 › 16:00 |
| Speaker | Masanori Hanada |
| Location |
BSP, 626
|
| Category | Conferences - Seminars |
We consider one of the biggest mystery of the gauge/gravity duality: Can gauge theories describe evaporating black holes with negative specific heat? Most people believe the answer is yes, by assuming the gauge/gravity duality is correct. We study this problem from gauge theory side, without assuming inputs from gravity side, because otherwise we would be simply assuming the answer to derive the answer, and furthermore, because we expect the microscopic description based on gauge theory should provide us with intuition into quantum gravity.
We point out that the previous analyses missed the process of the emission of D-branes (eigenvalues of matrices), and with a proper treatment of this process, the evaporation and negative specific heat are inevitable consequences in rather generic class of black holes with gauge theory duals. For the specific case of black zero-brane, we analyze the evaporation process quantitatively by using analytic methods. Then we apply the same idea to 4d N=4 SYM on three-sphere. It turns out that the properties of the small 10d black hole and the Hagedorn behavior can be obtained rather straightforwardly.
We also consider the 'bulk geometry' by looking at gauge theory. More specifically, we study the force acting on D-branes in gauge theory side. We argue that the horizon is only an approximate concept at large-N; it becomes obscure, or 'disappear', at finite-N. We discuss how this picture is related to the evaporation described in the earlier part of the talk.
We point out that the previous analyses missed the process of the emission of D-branes (eigenvalues of matrices), and with a proper treatment of this process, the evaporation and negative specific heat are inevitable consequences in rather generic class of black holes with gauge theory duals. For the specific case of black zero-brane, we analyze the evaporation process quantitatively by using analytic methods. Then we apply the same idea to 4d N=4 SYM on three-sphere. It turns out that the properties of the small 10d black hole and the Hagedorn behavior can be obtained rather straightforwardly.
We also consider the 'bulk geometry' by looking at gauge theory. More specifically, we study the force acting on D-branes in gauge theory side. We argue that the horizon is only an approximate concept at large-N; it becomes obscure, or 'disappear', at finite-N. We discuss how this picture is related to the evaporation described in the earlier part of the talk.
Practical information
- General public
- Free
Organizer
- Prof. João Penedones
Contact
- Céline Burkhard