English

A quantum enhanced finite-time Otto cycle

Quantum Physics 2020-07-17 v2 Statistical Mechanics

Abstract

We use fast periodic control to realize finite-time Otto cycles exhibiting quantum advantage. Such periodic modulation of the working medium - bath interaction Hamiltonian during the thermalization strokes can give rise to non-Markovian anti-Zeno dynamics, and corresponding reduction in the thermalization times. Faster thermalization can in turn significantly enhance the power output in engines, or equivalently, the rate of refrigeration in refrigerators. This improvement in performance of dynamically controlled Otto thermal machines arises due to the time-energy uncertainty relation of quantum mechanics.

Keywords

Cite

@article{arxiv.2004.08155,
  title  = {A quantum enhanced finite-time Otto cycle},
  author = {Arpan Das and Victor Mukherjee},
  journal= {arXiv preprint arXiv:2004.08155},
  year   = {2020}
}

Comments

12 pages, 13 figures. Close to published version

R2 v1 2026-06-23T14:55:02.807Z