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Journal Article

Fate of a discrete time crystal in an open system

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Lazarides, Achilleas
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Moessner, Roderich
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Lazarides, A., & Moessner, R. (2017). Fate of a discrete time crystal in an open system. Physical Review B, 95(19).

Abstract

Following the recent realization that periodically driven quantum matter can support new types of spatiotemporal order, now known as discrete time crystals (DTCs), we consider the stability of this phenomenon. Motivated by its conceptual importance as well as its experimental relevance, we consider the effect of coupling to an external environment. We use this to argue, both analytically and numerically, that the DTC in disordered one-dimensional systems is destroyed at long times by any such natural coupling. This holds true even in the case where the coupling is such that the system is prevented from heating up by an external thermal bath.