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Area of Science:

  • * Quantum physics
  • * Condensed matter physics
  • * Statistical mechanics

Background:

  • * Driven-dissipative many-body systems exhibit unique quantum phases not found in equilibrium.
  • * Dynamical quantum phases can emerge from the interplay of coherent driving and collective dissipation.
  • * Boundary time crystals (BTCs) spontaneously break time-translation symmetry but are typically fragile against local dissipation.

Purpose of the Study:

  • * To demonstrate a robust BTC intrinsically induced by local dissipation.
  • * To investigate the behavior of this robust BTC across different regimes.
  • * To explore the transition from mean-field limit cycles to correlated BTCs.

Main Methods:

  • * Extensive numerical simulations were employed to provide evidence for the BTC.
  • * The study analyzed the system's behavior with varying interaction ranges.
  • * Quantum correlations were quantified to characterize the BTC phase.

Main Results:

  • * A robust BTC was successfully demonstrated, driven intrinsically by local dissipation.
  • * The study identified a transition from mean-field limit cycles to correlated BTCs as interaction range decreased.
  • * Sizable quantum correlations were observed in the correlated BTC regime.

Conclusions:

  • * Local dissipation can intrinsically induce robust boundary time crystals.
  • * The findings broaden the understanding of nonequilibrium quantum phases.
  • * This work provides new insights for the experimental search for dynamical quantum matter.