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Spatial-Translation-Induced Discrete Time Crystals.

Kaoru Mizuta1, Kazuaki Takasan1, Masaya Nakagawa2

  • 1Department of Physics, Kyoto University, Kyoto 606-8502, Japan.

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|September 20, 2018
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Summary
This summary is machine-generated.

Researchers introduce a novel spatial-translation-induced discrete time crystal. This new phase breaks spatial translation symmetry, enabling unique time crystal orders and charge/spin transport oscillations in quantum simulators.

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Area of Science:

  • Condensed Matter Physics
  • Quantum Many-Body Systems
  • Non-equilibrium Physics

Background:

  • Discrete time crystals are a unique non-equilibrium phase characterized by broken discrete time translation symmetry.
  • Conventional time crystals typically rely on breaking on-site symmetries.

Purpose of the Study:

  • To propose and investigate a new type of discrete time crystal, the spatial-translation-induced discrete time crystal.
  • To explore the realization of time crystal orders through spatial translation symmetry breaking.

Main Methods:

  • Theoretical proposal of a new time crystal phase.
  • Analysis of symmetry breaking related to spatial translation.
  • Demonstration of charge and spin transport oscillations.

Main Results:

  • Introduced the 'spatial-translation-induced discrete time crystal'.
  • Showcased that time crystal orders emerge by altering filling, not the driving protocol.
  • Observed nontrivial oscillations in local charge or spin transport.

Conclusions:

  • The spatial-translation-induced discrete time crystal offers a new paradigm for realizing time crystal orders.
  • This approach provides a novel avenue for detection and applications of time crystal orders.
  • Quantum circuits and simulators are promising platforms for this new time crystal phase.