Status | Confirmed |
Seminar Series | STR-LPT-ENS-HE |
Subjects | hep-th |
Date | Tuesday 6 February 2018 |
Time | 14:00 |
Institute | LPTENS |
Seminar Room | LPTENS library |
Speaker's Last Name | Oblak |
Speaker's First Name | Blagoje |
Speaker's Email Address | |
Speaker's Institution | ETH |
Title | Berry Phases of Boundary Gravitons |
Abstract | This talk is devoted to Berry phases that appear in unitary representations of asymptotic symmetry groups in general relativity. These phases arise when a coherent state is acted upon by symmetry transformations that trace a closed path in the group manifold, and they can be evaluated exactly even when the group is infinite-dimensional. We apply these ideas to the Virasoro and BMS groups; seeing their representations as particles dressed with boundary gravitons, the associated Berry phases generalize Thomas precession and provide, in principle, observable signatures of asymptotic symmetries. |
arXiv Preprint Number | |
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