Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries

• URL: http://arxiv.org/abs/2107.08620v2
• Date: Mon, 1 Nov 2021 14:15:23 GMT
• Title: Fluctuations in Extractable Work and Bounds on the Charging Power of Quantum Batteries
• Authors: Shang-Yung Wang
• Abstract summary: 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. Our results indicate that the free energy operator is not a consistent quantifying operator for the work content of a charging quantum battery.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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