Nature Communications (Oct 2022)

Dynamical control of quantum heat engines using exceptional points

  • J.-W. Zhang,
  • J.-Q. Zhang,
  • G.-Y. Ding,
  • J.-C. Li,
  • J.-T. Bu,
  • B. Wang,
  • L.-L. Yan,
  • S.-L. Su,
  • L. Chen,
  • F. Nori,
  • Ş. K. Özdemir,
  • F. Zhou,
  • H. Jing,
  • M. Feng

DOI
https://doi.org/10.1038/s41467-022-33667-1
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 7

Abstract

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Investigations of quantum thermal machines and Liouvillian exceptional points have rarely crossed each other. Here, the authors realize experimentally a quantum Otto engine using a single trapped ion, and show that crossing a Liouvillian exceptional point during the cycle increases the engine performance.