PIRSA:15040086

Braiding statistics and symmetry-protected topological phases

Levin, M. (2015). Braiding statistics and symmetry-protected topological phases. Perimeter Institute. https://pirsa.org/15040086

Levin, Michael. Braiding statistics and symmetry-protected topological phases. Perimeter Institute, Apr. 21, 2015, https://pirsa.org/15040086 

          @misc{ pirsa_PIRSA:15040086,
            doi = {10.48660/15040086},
            url = {https://pirsa.org/15040086},
            author = {Levin, Michael},
            keywords = {Condensed Matter},
            language = {en},
            title = {Braiding statistics and symmetry-protected topological phases},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {apr},
            note = {PIRSA:15040086 see, \url{https://pirsa.org}}
          }

Michael Levin University of Chicago

DOI 10.48660/15040086
Collection
Talk Type Scientific Series
Subject

Abstract

Symmetry-protected topological (SPT) phases can be thought of as generalizations of topological insulators. Just as topological insulators have robust boundary modes protected by time reversal and charge conservation symmetry, SPT phases have boundary modes protected by more general symmetries. In this talk, I will describe a method for analyzing 2D and 3D SPT phases using braiding statistics. More specifically, I will show that 2D and 3D SPT phases can be characterized by gauging their symmetries and studying the braiding statistics of their gauge flux excitations. The 3D case is of particular interest as it involves a generalization of quasiparticle braiding statistics to three dimensions.