Abstract
I present arguments indicating the impossibility of spontaneously rotating “quantum time crystals,” as recently proposed by Frank Wilczek. In particular, I prove a “no-go theorem,” rigorously ruling out the possibility of spontaneous ground-state (or thermal equilibrium) rotation for a broad class of systems.
- Received 26 June 2013
DOI:https://doi.org/10.1103/PhysRevLett.111.070402
© 2013 American Physical Society
