Phase Structure of Driven Quantum Systems

Vedika Khemani, Achilleas Lazarides, Roderich Moessner, and S. L. Sondhi
Phys. Rev. Lett. 116, 250401 – Published 21 June 2016

Abstract

Clean and interacting periodically driven systems are believed to exhibit a single, trivial “infinite-temperature” Floquet-ergodic phase. In contrast, here we show that their disordered Floquet many-body localized counterparts can exhibit distinct ordered phases delineated by sharp transitions. Some of these are analogs of equilibrium states with broken symmetries and topological order, while others—genuinely new to the Floquet problem—are characterized by order and nontrivial periodic dynamics. We illustrate these ideas in driven spin chains with Ising symmetry.

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  • Received 8 February 2016

DOI:https://doi.org/10.1103/PhysRevLett.116.250401

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsStatistical Physics & Thermodynamics

Authors & Affiliations

Vedika Khemani1,2, Achilleas Lazarides2, Roderich Moessner2, and S. L. Sondhi1,2

  • 1Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
  • 2Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany

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Issue

Vol. 116, Iss. 25 — 24 June 2016

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