Thermodynamics of Genuine Nonequilibrium States under Feedback Control

2011/09/30 by D. Abreu, David Abreu, Udo Seifert +1 · 124 citations
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Computer science #Control (management) #Dissipation #Feedback control #Non-equilibrium thermodynamics #Physics #Quantum Electrodynamics and Casimir Effect #Quantum Mechanics and Applications #Simple (philosophy) #Statistical physics #Thermodynamics #Work (physics) #cond-mat.stat-mech

paper · pdf · doi:10.1103/physrevlett.108.030601

published in Physical Review Letters 108(3), 030601 (American Physical Society) · 5 pages, 3 figures

arxiv created 2011/12/07 · openalex publication_date 2012/01/19 · arxiv updated 2012/01/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

For genuine nonequilibrium states that even at fixed external control parameter exhibit dissipation, we extend the Hatano-Sasa equality to processes with feedback control. The resulting bound on the maximal extractable work is substantially sharper than what would follow from applying the Sagawa-Ueda equality to transitions involving such states. For repeated measurements at short enough intervals, the power thus extracted can even exceed the average cost of driving as demonstrated explicitly with a simple, analytically solvable example.

Citations

• Einstein Relation Generalized to Nonequilibrium
• Dissipation: The Phase-Space Perspective
• Thermodynamics of feedback controlled systems
• Information heat engine: converting information to energy by feedback control
• Steady-State Thermodynamics of Langevin Systems

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