Comment on "Measurability of nonequilibrium thermodynamics in terms of the Hamiltonian of mean force"

Abstract

In a recent paper [P. Strasberg and M. Esposito, Phys. Rev. E {\bf 101}, 050101(R) (2020)] an attempt is presented to formulate the nonequilibrium thermodynamics of an open system in terms of the Hamiltonian of mean force. The purpose of the present comment is to clarify severe restrictions of this approach and also to stress that recently noted ambiguities [P. Talkner and P. Hänggi, Phys. Rev. E {\bf 94}, 022143 (2016)] of fluctuating thermodynamic potentials cannot be removed in the suggested way.

4 pages, comment, discussion expanded, references added

References in corpus (2)

• Fluctuation Theorem for Arbitrary Open Quantum Systems
• Merits and Qualms of Work Fluctuations in Classical Fluctuation Theorems

Cited by in corpus (8)

• First and Second Law of Quantum Thermodynamics: A Consistent Derivation Based on a Microscopic Definition of Entropy
• Open quantum system dynamics and the mean force Gibbs state
• Open-system approach to nonequilibrium quantum thermodynamics at arbitrary coupling
• Nonequilibrium Quantum Free Energy and Effective Temperature, Generating Functional and Influence Action
• Effective Gibbs state for averaged observables
• Nonequilibrium thermodynamics of uncertain stochastic processes
• Structure of the Hamiltonian of mean force
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