Failure of the local generalized Gibbs ensemble for integrable models with bound states

Garry Goldstein and Natan Andrei
Phys. Rev. A 90, 043625 – Published 23 October 2014

Abstract

In this work we study the applicability of the local generalized Gibbs ensemble (GGE) to integrable one-dimensional systems with bound states. We find that the GGE, when defined using only local conserved quantities, fails to describe the long-time dynamics for most initial states, including eigenstates. We present our calculations by studying the attractive Lieb-Liniger gas and the XXZ magnet, although similar results may be obtained for other models.

  • Figure
  • Received 25 May 2014
  • Revised 1 July 2014

DOI:https://doi.org/10.1103/PhysRevA.90.043625

©2014 American Physical Society

Authors & Affiliations

Garry Goldstein and Natan Andrei

  • Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA

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Issue

Vol. 90, Iss. 4 — October 2014

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