PIRSA:19110111

Video URL

https://pirsa.org/19110111

Spectral gaps without frustration

Lemm, M. (2019). Spectral gaps without frustration. Perimeter Institute for Theoretical Physics. https://pirsa.org/19110111

Lemm, Marius. Spectral gaps without frustration. Perimeter Institute for Theoretical Physics, Nov. 13, 2019, https://pirsa.org/19110111 

          @misc{ scivideos_PIRSA:19110111,
            doi = {10.48660/19110111},
            url = {https://pirsa.org/19110111},
            author = {Lemm, Marius},
            keywords = {Other Physics},
            language = {en},
            title = {Spectral gaps without frustration},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2019},
            month = {nov},
            note = {PIRSA:19110111 see, \url{https://scivideos.org/index.php/pirsa/19110111}}
          }

Marius Lemm Harvard University

Talk numberPIRSA:19110111
DOI10.48660/19110111
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

In quantum spin systems, the existence of a spectral gap above the ground state has strong implications for the low-energy physics. We survey recent results establishing spectral gaps in various frustration-free spin systems by verifying finite-size criteria. The talk is based on collaborations with Abdul-Rahman, Lucia, Mozgunov, Nachtergaele, Sandvik, Yang, Young, and Wang.