PIRSA:22120050

Equivariant Higher Berry classes and chiral states

Sopenko, N. (2022). Equivariant Higher Berry classes and chiral states. Perimeter Institute. https://pirsa.org/22120050

Sopenko, Nikita. Equivariant Higher Berry classes and chiral states. Perimeter Institute, Dec. 05, 2022, https://pirsa.org/22120050 

          @misc{ pirsa_PIRSA:22120050,
            doi = {10.48660/22120050},
            url = {https://pirsa.org/22120050},
            author = {Sopenko, Nikita},
            keywords = {Condensed Matter},
            language = {en},
            title = {Equivariant Higher Berry classes and chiral states},
            publisher = {Perimeter Institute},
            year = {2022},
            month = {dec},
            note = {PIRSA:22120050 see, \url{https://pirsa.org}}
          }

Nikita Sopenko

Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)

Talk number
PIRSA:22120050
Collection
Talk Type
Subject
Abstract

I will talk about the generalization of Berry classes for quantum lattice spin systems. It defines invariants of topologically ordered states or families thereof. In particular, its equivariant version for 2d gapped states gives the zero-temperature Hall conductance and its various generalizations. I will also discuss the construction of chiral states realizing the topological order associated with a unitary rational vertex operator algebra for which these invariants are non-trivial

Zoom link:  https://pitp.zoom.us/j/99910103969?pwd=VlVHVGRiV29iVEFyTXZyR3ovMkRaQT09