2020/04/30 by Sai Li, Tao Chen, Jia Liu +1 · 2 citations
Physics and Astronomy · #Coupling (piping) #Fidelity #High fidelity #Mechanical and Optical Resonators #Physics of Superconductivity and Magnetism #Quantum #Quantum process #Quantum state #Quantum system #Quantum technology #State (computer science) #Strong Light-Matter Interactions #quant-ph
paper · pdf · doi:10.1088/1674-1056/abee0c
published in Chinese Physics B 30(6), 060314 (IOP Publishing) · 6 pages, 3 figures
arxiv created 2021/03/12 · openalex publication_date 2021/03/12 · openalex created_date 2021/03/29 · arxiv updated 2021/06/09 · openalex updated_date 2026/08/05
Besides its fundamental importance, non-reciprocity has also found many potential applications in quantum technology. 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 difficulties 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 provides a promising way to explore fundamental non-reciprocal quantum physics as well as realize non-reciprocal quantum device.