Truncated dynamics, ring molecules, and mechanical time crystals

Jin Dai, Antti J. Niemi, Xubiao Peng, Frank Wilczek

    Research output: Contribution to journalArticlepeer-review

    11 Scopus citations


    We identify circumstances where the effective descriptions of microscopic physical systems leads to a self-consistent reduced dynamics for a truncated subset of the original variables. The effective Hamiltonian involves unusual Poisson brackets that bring in noncommutative geometry. In idealized models of ring molecules, we find time crystal behavior is widespread.

    Original languageEnglish (US)
    Article number023425
    JournalPhysical Review A
    Issue number2
    StatePublished - Feb 25 2019

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics


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