Abstract
We show experimentally and theoretically that the translation dynamics of acoustic bubbles in an acoustic standing wave field exhibit all the attributes of a discrete time crystal, the dynamics of which is described by Mathieu’s equation. Individual bubbles and synchronized bubbles in a self-organized chain undergo emergent slow persistent oscillations. The period of the emergent oscillations is longer than that of the driving acoustic wave by three orders of magnitude, therefore, breaking the discrete time translation symmetry of the driver.
Highlights
Spontaneous breaking of continuous time translational symmetry [1,2] in quantum equilibrium systems is forbidden [3,4]
Discrete time translation symmetry can be broken in out-of-equilibrium periodically driven systems [5–7]
The signature of broken discrete time translation symmetry takes the form of emergent subharmonic dynamics with a period larger than that of the driver
Summary
Spontaneous breaking of continuous time translational symmetry [1,2] in quantum equilibrium systems is forbidden [3,4]. Observation of Discrete Floquet Time Crystals in Periodically Driven Acoustic Bubbles.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
