Long-Range Prethermal Phases of Nonequilibrium Matter

Francisco Machado; Dominic V. Else; Gregory D. Kahanamoku-Meyer; Chetan Nayak; Norman Y. Yao

doi:10.1103/physrevx.10.011043

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arXiv · 1908.07530

Long-Range Prethermal Phases of Nonequilibrium Matter

Francisco Machado·Dominic V. Else·Gregory D. Kahanamoku-Meyer·Chetan Nayak·Norman Y. Yao

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Abstract

We prove the existence of non-equilibrium phases of matter in the prethermal regime of periodically-driven, long-range interacting systems, with power-law exponent $α> d$, where $d$ is the dimensionality of the system. In this context, we predict the existence of a disorder-free, prethermal discrete time crystal in one dimension -- a phase strictly forbidden in the absence of long-range interactions. Finally, using a combination of analytic and numerical methods, we highlight key experimentally observable differences between such a prethermal time crystal and its many-body localized counterpart.

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Francisco Machado, Dominic V. Else, Gregory D. Kahanamoku-Meyer, Chetan Nayak, Norman Y. Yao. 2020-02-24. Long-Range Prethermal Phases of Nonequilibrium Matter. https://doi.org/10.1103/physrevx.10.011043

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