Quantum Time Crystals
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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.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Physical Review Letters
American Physical Society
Wilczek, Frank. “Quantum Time Crystals.” Physical Review Letters 109.16 (2012). © 2012 American Physical Society
Final published version