Video URL

https://pirsa.org/13050050

A gauge theory generalization of the fermion-doubling theorem

McGreevy, J. (2013). A gauge theory generalization of the fermion-doubling theorem. Perimeter Institute for Theoretical Physics. https://pirsa.org/13050050

McGreevy, John. A gauge theory generalization of the fermion-doubling theorem. Perimeter Institute for Theoretical Physics, May. 10, 2013, https://pirsa.org/13050050 

          @misc{ scivideos_PIRSA:13050050,
            doi = {10.48660/13050050},
            url = {https://pirsa.org/13050050},
            author = {McGreevy, John},
            keywords = {Quantum Fields and Strings, Quantum Matter},
            language = {en},
            title = {A gauge theory generalization of the fermion-doubling theorem},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {may},
            note = {PIRSA:13050050 see, \url{https://scivideos.org/index.php/pirsa/13050050}}
          }

John McGreevy University of California, San Diego

DOI 10.48660/13050050
Source Repository PIRSA
Collection
Talk Type Conference
Subject

Abstract

This talk is about obstructions to symmetry-preserving regulators of quantum field theories in 3+1 dimensions.  New examples of such obstructions can be found using the fact that  4+1-dimensional SPT states are characterized by their edge states.
(Based on work in progress with S.M. Kravec.)