Quantum Speed Limits across the Quantum-to-Classical Transition
Abstract
Quantum speed limits set an upper bound to the rate at which a quantum system can evolve. Adopting a phase-space approach, we explore quantum speed limits across the quantum-to-classical transition and identify equivalent bounds in the classical world. As a result, and contrary to common belief, we show that speed limits exist for both quantum and classical systems. As in the quantum domain, classical speed limits are set by a given norm of the generator of time evolution.
- Publication:
-
Physical Review Letters
- Pub Date:
- February 2018
- DOI:
- 10.1103/PhysRevLett.120.070401
- arXiv:
- arXiv:1710.07335
- Bibcode:
- 2018PhRvL.120g0401S
- Keywords:
-
- Quantum Physics
- E-Print:
- 5+3pp, 1 figure, accepted in Phys. Rev. Lett