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Truncated dynamics, ring molecules, and mechanical time crystals
Stockholm Univ, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics. Stockholm Univ, NORDITA, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden;Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China;Far Eastern Fed Univ, Lab Phys Living Matter, Sukhanova 8, Vladivostok 690950, Russia.ORCID iD: 0000-0003-3408-5834
Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China;Beijing Inst Technol, Ctr Quantum Technol Res, Beijing 100081, Peoples R China.
MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA;Stockholm Univ, S-10691 Stockholm, Sweden;Shanghai Jiao Tong Univ, TD Lee Inst, Shanghai 200240, Peoples R China;Shanghai Jiao Tong Univ, Wilczek Quantum Ctr, Shanghai 200240, Peoples R China;Arizona State Univ, Dept Phys, Tempe, AZ 25287 USA;Arizona State Univ, Origins Project, Tempe, AZ 25287 USA.
2019 (English)In: Physical Review A: covering atomic, molecular, and optical physics and quantum information, ISSN 2469-9926, E-ISSN 2469-9934, Vol. 99, no 2, article id 023425Article in journal (Refereed) Published
Abstract [en]

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.

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AMER PHYSICAL SOC , 2019. Vol. 99, no 2, article id 023425
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URN: urn:nbn:se:uu:diva-379590DOI: 10.1103/PhysRevA.99.023425ISI: 000459900400014OAI: oai:DiVA.org:uu-379590DiVA, id: diva2:1296960
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Swedish Research Council, 335-2014-7424EU, European Research Council, 742104Available from: 2019-03-18 Created: 2019-03-18 Last updated: 2019-03-18Bibliographically approved

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Niemi, Antti J.

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