Physics

Chiral quantum heating and cooling with an optically controlled ion

J. Bu, J. Zhang, et al.

This groundbreaking research by Jin-Tao Bu and colleagues explores chiral quantum heating and refrigeration, revealing how dynamically encircling a closed loop near a Liouvillian exceptional point influences heat dynamics. The study delves into the intriguing roles of adiabaticity breakdown and the Landau-Zener-Stückelberg process, enhancing our understanding of non-Hermitian systems and quantum thermodynamics.

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Abstract

This paper demonstrates chiral quantum heating and refrigeration by dynamically encircling a closed loop near a Liouvillian exceptional point (LEP) using a Paul-trapped ultracold ion. The experiment shows that the cycling direction is associated with chirality and heat release/absorption, with both adiabaticity breakdown and the Landau-Zener-Stückelberg process playing crucial roles. The findings contribute to understanding chiral and topological features in non-Hermitian systems and their relationship with quantum thermodynamics.

Publisher

Light: Science & Applications

Published On

Jan 01, 2024

Authors

Jin-Tao Bu, Jian-Qi Zhang, Ge-Yi Ding, Jia-Chong Li, Jia-Wei Zhang, Bin Wang, Wen-Qiang Ding, Wen-Fei Yuan, Liang Chen, Qi Zhong, Ali Keçebaş, Şahin K. Özdemir, Fei Zhou, Hui Jing, Mang Feng

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