Your browser doesn't support javascript.
loading
Orthogonal Quantum Many-Body Scars.
Zhao, Hongzheng; Smith, Adam; Mintert, Florian; Knolle, Johannes.
Afiliação
  • Zhao H; Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom.
  • Smith A; School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
  • Mintert F; Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom.
  • Knolle J; Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom.
Phys Rev Lett ; 127(15): 150601, 2021 Oct 08.
Article em En | MEDLINE | ID: mdl-34678002
Quantum many-body scars have been put forward as counterexamples to the eigenstate thermalization hypothesis. These atypical states are observed in a range of correlated models as long-lived oscillations of local observables in quench experiments starting from selected initial states. The long-time memory is a manifestation of quantum nonergodicity generally linked to a subextensive generation of entanglement entropy, the latter of which is widely used as a diagnostic for identifying quantum many-body scars numerically as low entanglement outliers. Here we show that by adding kinetic constraints to a fractionalized orthogonal metal, we can construct a minimal model with orthogonal quantum many-body scars leading to persistent oscillations with infinite lifetime coexisting with rapid volume-law entanglement generation. Our example provides new insights into the link between quantum ergodicity and many-body entanglement while opening new avenues for exotic nonequilibrium dynamics in strongly correlated multicomponent quantum systems.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Reino Unido País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Reino Unido País de publicação: Estados Unidos