Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

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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Attachments
  • Oblak-Berry.pdf (1121021 bytes) OPEN

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