Phase structure of one-dimensional interacting Floquet systems. II. Symmetry-broken phases

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  • Princeton University


Recent work suggests that a sharp definition of "phase of matter" can be given for periodically driven "Floquet" quantum systems exhibiting many-body localization. In this work, we propose a classification of the phases of interacting Floquet localized systems with (completely) spontaneously broken symmetries; we focus on the one-dimensional case, but our results appear to generalize to higher dimensions. We find that the different Floquet phases correspond to elements of Z(G), the center of the symmetry group in question. In a previous paper [C. W. von Keyserlingk and S. L. Sondhi, preceding paper, Phys. Rev. B 93, 245145 (2016)]10.1103/PhysRevB.93.245145, we offered a companion classification of unbroken, i.e., paramagnetic phases.


Original languageEnglish
Article number245146
Number of pages11
JournalPhysical Review B
Issue number24
Publication statusPublished - 27 Jun 2016

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