Quantum Speed Limits across the Quantum-to-Classical Transition
B. Shanahan, Aurélia Chenu, Norman Margolus, Adolfo del Campo · Physical Review Letters · 2018
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.