English

Liquid Time Crystals

Fluid Dynamics 2024-03-12 v2 Quantum Gases

Abstract

We have constructed and characterised an instrument to study gravitationally bouncing droplets of fluid, subjected to periodic driving force. Our system incorporates a droplet printer that enables an on-demand computer controlled deposition of droplets on the fluid surface. We demonstrate the operation of this instrument by creating and observing long-lived and interacting time crystals whose evolution we have witnessed for more than one hundred thousand oscillation periods. Our observations provide points of comparison for experiments that differentiate between quantum and classical time crystal behaviours in driven non-equilibrium systems.

Keywords

Cite

@article{arxiv.2202.05407,
  title  = {Liquid Time Crystals},
  author = {Tapio Simula},
  journal= {arXiv preprint arXiv:2202.05407},
  year   = {2024}
}

Comments

10 pages, 7 figures, reduced file size

R2 v1 2026-06-24T09:31:20.913Z