Realization of microwave amplification, attenuation, and frequency conversion using a single three-level superconducting quantum circuit
Yan-Jun Zhao, Jiang-Hao Ding, Z. H. Peng, Yu-xi Liu
DOI 10.1103/PhysRevA.95.043806 · Physical Review A
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Abstract
Using different configurations of applied strong driving and weak probe fields, we find that only a single three-level superconducting quantum circuit (SQC) is enough to realize amplification, attenuation, and frequency conversion of microwave fields. Such a three-level SQC has to possess Δ-type cyclic transitions. Different from the parametric amplification (attenuation) and frequency conversion in nonlinear optical media, the real energy levels of the three-level SQC are involved in the energy exchange when these processes are completed. We quantitatively discuss the effects of amplification (attenuation) and the frequency conversion for different types of driving fields. The values and conditions are obtained for the optimal gains for amplification (attenuation) and the optimal conversion efficiencies. Our study provides a method to amplify (attenuate) microwave, realize frequency conversion, and also lay a foundation for generating single or entangled microwave photon states using a single three-level SQC.
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