Quantum time crystals

Some subtleties and apparent difficulties associated with the notion of spontaneous breaking of time-translation symmetry in quantum mechanics are identified and resolved. A model exhibiting that phenomenon is displayed. The possibility and significance of breaking of imaginary time-translation symm...

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Published in:Physical review letters 2012-10, Vol.109 (16), p.160401-160401, Article 160401
Main Author: Wilczek, Frank
Format: Article
Language:English
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description Some subtleties and apparent difficulties associated with the notion of spontaneous breaking of time-translation symmetry in quantum mechanics are identified and resolved. A model exhibiting that phenomenon is displayed. The possibility and significance of breaking of imaginary time-translation symmetry is discussed.
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title Quantum time crystals
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