Physical principle for parametric loops in the vicinity of a LEP in the parameter space of a single trapped ion quantum heat engine. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Physical principle for parametric loops in the vicinity of a LEP in the parameter space of a single trapped ion quantum heat engine.

Caption

Physical principle for parametric loops in the vicinity of a LEP in the parameter space of a single trapped ion quantum heat engine. a, Schematic of the experimental setup using a Paul-trapped ion to demonstrate chiral quantum heating and cooling. With the application of external laser fields, the ion is manipulated by encircling a LEP, resulting in different thermodynamic cycles. b, Theoretical model illustrating the effect of LEPs on the eigenvalue landscape, leading to chiral behavior in the quantum system. c, Theoretical results showing projections of the eigenvalues of Hamiltonian with different encircling directions. The left subfigures are for the thermodynamic output (heating or cooling) while the right ones correspond to quantum state transfers.

Credit

by 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, and Mang Feng

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