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arXiv · 1310.1096

Many-body Localization and Symmetry Protected Topological Order

Anushya Chandran·Vedika Khemani·C. R. Laumann·S. L. Sondhi
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Abstract

Recent work shows that highly excited many-body localized eigenstates can exhibit broken symmetries and topological order, including in dimensions where such order would be forbidden in equilibrium. In this paper we extend this analysis to discrete symmetry protected order via the explicit examples of the Haldane phase of one dimensional spin chains and the topological Ising paramagnet in two dimensions. We comment on the challenge of extending these results to cases where the protecting symmetry is continuous.

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Anushya Chandran, Vedika Khemani, C. R. Laumann, S. L. Sondhi. 2014-04-14. Many-body Localization and Symmetry Protected Topological Order. https://doi.org/10.1103/physrevb.89.144201

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