PIRSA:20120000

Measurement phase transitions and statistical mechanics

Nahum, A. (2020). Measurement phase transitions and statistical mechanics. Perimeter Institute. https://pirsa.org/20120000

Nahum, Adam. Measurement phase transitions and statistical mechanics. Perimeter Institute, Dec. 07, 2020, https://pirsa.org/20120000 

          @misc{ pirsa_PIRSA:20120000,
            doi = {10.48660/20120000},
            url = {https://pirsa.org/20120000},
            author = {Nahum, Adam},
            keywords = {Condensed Matter},
            language = {en},
            title = {Measurement phase transitions and statistical mechanics},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {dec},
            note = {PIRSA:20120000 see, \url{https://pirsa.org}}
          }

Adam Nahum

University of Oxford

Talk number
PIRSA:20120000
Talk Type
Subject
Abstract

A many-body quantum system that is continually monitored by an external observer may be in distinct dynamical phases, depending on whether or not the observer’s repeated local measurements prevent the buildup of long-range entanglement. The universal properties of the “measurement phase transitions” between these phases remain a challenge. In this talk I will describe new theoretical approaches to measurement phase transitions, making connections with problems in statistical mechanics such as disordered magnets and travelling waves. I will show that exact results are possible in some regimes, including for quantum circuits with all-to-all interactions. (Based on arxiv:2009.11311)