Theory Seminar

Theory seminars take place Monday afternoons at 2:10 PM in the Pupin Hall Theory Center on the 8th floor.

"Berry Phases of Boundary Gravitons"

Monday, April 16, 2018 - 2:10pm

Blagoje Oblak

Eidgenössische Technische Hochschule (ETH), Zurich

"Berry Phases of Boundary Gravitons"

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.

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