A Long Range, Pre-thermal Time Crystal in One Dimension

ORAL

Abstract

Periodically driven (Floquet) systems provide an ideal platform for exploring out-of-equilibrium dynamics. In this talk, we present the numerical observation of time crystalline order in a prethermal one dimensional spin chain with long range interactions. We demonstrate that power-law interactions, with exponent α < 2, are essential to stabilize such order in 1D. In particular, we compare to the case of short-range interactions, where a robust prethermal regime is also observed, but where the time-crystalline order decays rapidly. Finally, we examine the dynamics of domain walls in the long-range system and discuss recent experiments in trapped ions.

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Presenters

  • Gregory Meyer

    University of California Berkeley, Physics, University of California, Berkeley

Authors

  • Gregory Meyer

    University of California Berkeley, Physics, University of California, Berkeley

  • Francisco Machado

    University of California Berkeley, Physics, University of California, Berkeley

  • Dominic Else

    Department of Physics, University of California, Santa Barbara, Physics, University of California Santa Barbara, Physics, University of Califonia, Santa Barbara

  • Chetan Nayak

    Microsoft Corp, Microsoft Research Station Q

  • Norman Yao

    Physics, Univ of California - Berkeley, Department of Physics, University of California, University of California, Berkeley, Univ of California - Berkeley, University of California Berkeley, Physics, University of California, Berkeley, Department of Physics, Univ of California - Berkeley