PIRSA:17120006

Floquet phases of matter: time crystals and beyond

Else, D. (2017). Floquet phases of matter: time crystals and beyond. Perimeter Institute. https://pirsa.org/17120006

Else, Dominic. Floquet phases of matter: time crystals and beyond. Perimeter Institute, Dec. 05, 2017, https://pirsa.org/17120006 

          @misc{ pirsa_PIRSA:17120006,
            doi = {10.48660/17120006},
            url = {https://pirsa.org/17120006},
            author = {Else, Dominic},
            keywords = {Condensed Matter},
            language = {en},
            title = {Floquet phases of matter: time crystals and beyond},
            publisher = {Perimeter Institute},
            year = {2017},
            month = {dec},
            note = {PIRSA:17120006 see, \url{https://pirsa.org}}
          }

Dominic Else Perimeter Institute for Theoretical Physics

DOI 10.48660/17120006
Collection
Talk Type Scientific Series
Subject

Abstract

Periodically driven (Floquet) systems can display entirely new many-body phases of matter that have no analog in stationary systems. One such phase is the Floquet time crystal, which spontaneously breaks a discrete time-translation symmetry. In this talk, I will survey the physics of these new phases of matter. I explain how they can be stabilized either through strong quenched disorder (many-body localization), or alternatively in clean systems in a "prethermal" regime which persists until a time that is exponentially long in a small parameter.