Comment on "Quantum Friction - Fact or Fiction?"
Ulf Leonhardt
TL;DR
This paper critically examines the concept of quantum friction, arguing that its existence would imply impossible energy extraction from the vacuum and would contradict established Lifshitz theory.
Contribution
It provides a theoretical critique of quantum friction, challenging claims of its existence and highlighting inconsistencies with fundamental physical principles.
Findings
Quantum friction's existence would allow unlimited energy extraction from vacuum
Such a phenomenon would contradict Lifshitz theory
The paper suggests quantum friction is unlikely to occur
Abstract
If quantum friction existed [J.B. Pendry, New J. Phys. 12, 033028 (2010)] an unlimited amount of useful energy could be extracted from the quantum vacuum and Lifshitz theory would fail. Both are unlikely to be true.
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