Superfluidity and Space-Time Translation Symmetry Breaking
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I present a simple model that exhibits a temporal analogue of superconducting crystalline (Larkin-Ovchinnikov-Ferrell-Fulde) ordering, with a time-dependent order parameter. I sketch designs for minimally dissipative ac circuits, all based on time translation symmetry (τ) invariant dynamics, exploiting weak links (Josephson effects). These systems violate τ spontaneously. I also discuss effective theories of that phenomenon, and space-time generalizations.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Physical Review Letters
American Physical Society
Wilczek, Frank. “Superfluidity and Space-Time Translation Symmetry Breaking.” Physical Review Letters 111, no. 25 (December 2013). © 2013 American Physical Society
Final published version