English

Quantum work statistics of controlled evolutions

Quantum Physics 2023-10-13 v1 Statistical Mechanics

Abstract

We use the quantum work statistics to characterize the controlled dynamics governed by a counterdiabatic driving field. Focusing on the Shannon entropy of the work probability distribution, P(W)P(W), we demonstrate that the thermodynamics of a controlled evolution serves as an insightful tool for studying the non-equilibrium dynamics of complex quantum systems. In particular, we show that the entropy of P(W)P(W) recovers the expected scaling according to the Kibble-Zurek mechanism for the Landau-Zener model. Furthermore, we propose that the entropy of the work distribution provides a useful summary statistic for characterizing the need and complexity of the control fields for many-body systems.

Keywords

Cite

@article{arxiv.2309.04419,
  title  = {Quantum work statistics of controlled evolutions},
  author = {Steve Campbell},
  journal= {arXiv preprint arXiv:2309.04419},
  year   = {2023}
}

Comments

5 pages, 2 figures

R2 v1 2026-06-28T12:16:26.208Z