Interaction induced non-reciprocal three-level quantum transport

• 作者: Sai Li Tao Chen Jia Liu Zheng-Yuan Xue
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: SPECIAL TOPIC—Quantum computation and quantum simulation
• 页码范围: 34-39
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/abee0c

摘要

Besides its fundamental importance,non-reciprocity has also found many potential applications in quantum technol-ogy.Recently,many quantum systems have been proposed to realize non-reciprocity,but stable non-reciprocal process is still experimentally difficult in general,due to the needed cyclical interactions in artificial systems or operational difficul-ties in solid state materials.Here,we propose a new kind of interaction induced non-reciprocal operation,based on the conventional stimulated-Raman-adiabatic-passage (STIRAP) setup,which removes the experimental difficulty of requiring cyclical interaction,and thus it is directly implementable in various quantum systems.Furthermore,we also illustrate our proposal on a chain of three coupled superconducting transmons,which can lead to a non-reciprocal circulator with high fidelity without a ring coupling configuration as in the previous schemes or implementations.Therefore,our protocol pro-vides a promising way to explore fundamental non-reciprocal quantum physics as well as realize non-reciprocal quantum device.