Status | Confirmed |
Seminar Series | STR-LPT-ENS-HE |
Subjects | hep-th |
Date | Tuesday 12 December 2017 |
Time | 11:30 |
Institute | LPTENS |
Seminar Room | library |
Speaker's Last Name | Murthy |
Speaker's First Name | Sameer |
Speaker's Email Address | |
Speaker's Institution | King's College London |
Title | Twisted BRST quantization and localization in supergravity |
Abstract | Supersymmetric localization is a powerful technique to evaluate a class of functional integrals in supersymmetric field theories. It reduces the functional integral over field space to ordinary integrals over the space of solutions of the off-shell BPS equations. The application of this technique to supergravity suffers from some problems, both conceptual and practical. I will discuss one of the main conceptual problems, namely how to construct the fermionic symmetry with which to localize. I will show how a deformation of the BRST technique allows us to do this. This leads us to a formulation of twisted supergravity. I will then sketch a computation of the one-loop determinant of the graviton supermultiplet that enters the localization formula for BPS black hole entropy. |
arXiv Preprint Number | |
Comments | Attention au changement de lieu ! |
Attachments |
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