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Classical Many-Body Time Crystals.

Toni L Heugel1, Matthias Oscity1,2, Alexander Eichler2

  • 1Institute for Theoretical Physics, ETH Zurich, 8093 Zurich, Switzerland.

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|October 22, 2019
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Summary
This summary is machine-generated.

Researchers developed a simple framework to create many-body time crystals using coupled resonators. This work distinguishes single-mode from extensive symmetry breaking and demonstrates it with mechanical oscillators for real-world applications.

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Area of Science:

  • Condensed Matter Physics
  • Quantum Mechanics
  • Non-equilibrium Physics

Background:

  • Discrete time crystals represent a novel phase of matter with sub-harmonic oscillations.
  • Experimental realizations and theoretical definitions of discrete time crystals are actively debated.
  • Distinguishing true many-body behavior from single-mode phenomena is crucial for their study.

Purpose of the Study:

  • To provide a simple, pedagogical framework for realizing many-body time crystals.
  • To differentiate between single-mode and extensive time-translation symmetry breaking.
  • To experimentally validate the proposed framework using coupled mechanical oscillators.

Main Methods:

  • Utilized classical period-doubling bifurcation theory.
  • Employed parametrically coupled resonators as a theoretical model.
  • Implemented coupled mechanical oscillators for experimental demonstration.

Main Results:

  • Developed a clear theoretical distinction between single-mode and extensive symmetry breaking.
  • Successfully demonstrated the proposed framework experimentally using mechanical oscillators.
  • Showcased a viable route for realizing many-body time crystals in physical systems.

Conclusions:

  • The proposed framework offers a straightforward method for creating many-body time crystals.
  • Experimental validation with coupled mechanical oscillators confirms the theoretical predictions.
  • This work provides a clear pathway for future research and applications of time crystals in real materials.