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AIP Theoretical Physics Seminar: Realization of a Discrete Time Crystal on IBM's Quantum Computer

  • 19 May 2022
  • 1:00 PM
  • Online

Speaker: Stephan Rachel, School of Physics, University of Melbourne

Abstract: Novel dynamical phases that violate ergodicity have been a subject of extensive research in recent years. A periodically driven system is naively expected to lose all memory of its initial state due to thermalisation, yet this can be avoided in the presence of many-body localization. A discrete time crystal represents a driven system whose local observables spontaneously break time translation symmetry and retain memory of the initial state indefinitely. Here, we report the observation of a discrete time crystal on a chain consisting of 57 superconducting qubits on a state-of-the art quantum computer.

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