Work-distribution quantumness and irreversibility when crossing a quantum phase transition in finite time

2019/08/28 by Krissia Zawadzki, Roberto M. Serra, Irene D'Amico
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Dissipation #Entropy (arrow of time) #Entropy production #Phase transition #Quantum #Quantum fluctuation #Quantum many-body systems #Quantum phase transition #Sign (mathematics) #Statistical Mechanics and Entropy #Work (physics) #cond-mat.str-el #quant-ph

paper · pdf · doi:10.1103/physrevresearch.2.033167

published as Phys. Rev. Research 2, 033167 (2020) · Animations for the supplemental material found here: https://github.com/krissiazawadzki/work_distributions_hubbard

openalex created_date 2019/08/22 · arxiv created 2019/08/28 · openalex publication_date 2020/07/29 · arxiv updated 2020/08/05 · openalex updated_date 2026/08/05

Abstract

This work discusses the effects of many-body interactions on the statistics of work in inhomogeneous fermionic chains driven for finite times and across the precursor to the metal-Mott insulator quantum phase transition. For dynamics beyond sudden quenches, a change in sign and a variation in value of the skewness signal the transition, while entropy production dominates work fluctuations even for slow processes, in contrast to the classical work fluctuation dissipation relation.

Citations

• Experimental Reconstruction of Work Distribution and Study of Fluctuation Relations in a Closed Quantum System
• Dissipation: The Phase-Space Perspective
• Work fluctuations in quantum spin chains
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• Quantum phase transitions of light
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