Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
Quantum Physics
2021-11-03 v2
Abstract
Motivated by a recent disagreement about the claim that fluctuations in the free energy operator bound the charging power of a quantum battery, we present a critical analysis of the original derivation. The analysis shows that the above claim does not hold for both closed- and open-system dynamics. Our results indicate that the free energy operator is not a consistent quantifying operator for the work content of a charging quantum battery.
Keywords
Cite
@article{arxiv.2107.08620,
title = {Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries},
author = {Shang-Yung Wang},
journal= {arXiv preprint arXiv:2107.08620},
year = {2021}
}
Comments
7 pages, title changed, expanded and improved version of arXiv:2102.04921 and arXiv:2107.08620v1 with added Introduction, Discussion and references