A perspective on quantum integrability in many-body-localized and Yang-Baxter systems

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
Joel E Moore

Abstract

Two of the most active areas in quantum many-particle dynamics involve systems with an unusually large number of conservation laws. Many-body-localized systems generalize ideas of Anderson localization by disorder to interacting systems. While localization still exists with interactions and inhibits thermalization, the interactions between conserved quantities lead to some dramatic differences from the Anderson case. Quantum integrable models such as the XXZ spin chain or Bose gas with delta-function interactions also have infinite sets of conservation laws, again leading to modifications of conventional thermalization. A practical way to treat the hydrodynamic evolution from local equilibrium to global equilibrium in such models is discussed. This paper expands upon a presentation at a discussion meeting of the Royal Society on 7 February 2017. The work described was carried out with a number of collaborators, including Jens Bardarson, Vir Bulchandani, Roni Ilan, Christoph Karrasch, Siddharth Parameswaran, Frank Pollmann and Romain Vasseur.This article is part of the themed issue 'Breakdown of ergodicity in quantum systems: from solids to synthetic matter'.

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May 9, 2015·Physical Review Letters·Kartiek AgarwalEugene Demler
Jan 15, 2016·Physical Review Letters·Romain VasseurJoel E Moore
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Dec 30, 2017·Physical Review Letters·Vir B BulchandaniJoel E Moore

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Citations

Nov 1, 2017·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Michael PepperSteven Simon
Jun 11, 2021·Physical Review Letters·Alexander V PoshakinskiyAlexander N Poddubny

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