Energy-time uncertainty relation for driven quantum systems
Quantum Physics
2013-08-08 v3
Abstract
We derive generalizations of the energy-time uncertainty relation for driven quantum systems. Using a geometric approach based on the Bures length between mixed quantum states, we obtain explicit expressions for the quantum speed limit time, valid for arbitrary initial and final quantum states and arbitrary driving protocols. Our results establish the fundamental limit on the rate of evolution of generic quantum systems.
Cite
@article{arxiv.1104.5104,
title = {Energy-time uncertainty relation for driven quantum systems},
author = {Sebastian Deffner and Eric Lutz},
journal= {arXiv preprint arXiv:1104.5104},
year = {2013}
}
Comments
9 pages, published version