Classical Time Crystals

We consider the possibility that classical dynamical systems display motion in their lowest-energy state, forming a time analogue of crystalline spatial order. Challenges facing that idea are identified and overcome. We display arbitrary orbits of an angular variable as lowest-energy trajectories fo...

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Main Authors: Shapere, Alfred, Wilczek, Frank
Other Authors: Massachusetts Institute of Technology. Center for Theoretical Physics
Format: Article
Language:en_US
Published: American Physical Society 2013
Online Access:http://hdl.handle.net/1721.1/76210
https://orcid.org/0000-0002-6489-6155
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author Shapere, Alfred
Wilczek, Frank
author2 Massachusetts Institute of Technology. Center for Theoretical Physics
author_facet Massachusetts Institute of Technology. Center for Theoretical Physics
Shapere, Alfred
Wilczek, Frank
author_sort Shapere, Alfred
collection MIT
description We consider the possibility that classical dynamical systems display motion in their lowest-energy state, forming a time analogue of crystalline spatial order. Challenges facing that idea are identified and overcome. We display arbitrary orbits of an angular variable as lowest-energy trajectories for nonsingular Lagrangian systems. Dynamics within orbits of broken symmetry provide a natural arena for formation of time crystals. We exhibit models of that kind, including a model with traveling density waves.
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spelling mit-1721.1/762102022-09-29T22:23:21Z Classical Time Crystals Shapere, Alfred Wilczek, Frank Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Wilczek, Frank We consider the possibility that classical dynamical systems display motion in their lowest-energy state, forming a time analogue of crystalline spatial order. Challenges facing that idea are identified and overcome. We display arbitrary orbits of an angular variable as lowest-energy trajectories for nonsingular Lagrangian systems. Dynamics within orbits of broken symmetry provide a natural arena for formation of time crystals. We exhibit models of that kind, including a model with traveling density waves. United States. Dept. of Energy (Grant DE-FG02-05ER41360) 2013-01-08T18:53:45Z 2013-01-08T18:53:45Z 2012-10 2012-04 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/76210 Shapere, Alfred, and Frank Wilczek. “Classical Time Crystals.” Physical Review Letters 109.16 (2012). © 2012 American Physical Society https://orcid.org/0000-0002-6489-6155 en_US http://dx.doi.org/10.1103/PhysRevLett.109.160402 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS
spellingShingle Shapere, Alfred
Wilczek, Frank
Classical Time Crystals
title Classical Time Crystals
title_full Classical Time Crystals
title_fullStr Classical Time Crystals
title_full_unstemmed Classical Time Crystals
title_short Classical Time Crystals
title_sort classical time crystals
url http://hdl.handle.net/1721.1/76210
https://orcid.org/0000-0002-6489-6155
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