Coherent competition and control between three-wave mixing and four-wave mixing in superconducting circuits
Miao-Xiang Liang, Yu-Xiang Qiu, Hai-Chao Li, Wei Xiong
DOI 10.1103/PhysRevA.111.013716 · Physical Review A
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Abstract
Exploring intermixing and interplay between different frequency-mixing processes has always been one of the interesting subjects at the interface of nonlinear optics with quantum optics. Here we investigate coherent competition and control between three-wave mixing (TWM) and four-wave mixing (FWM) in a cyclic Δ-type three-level superconducting quantum system. In the weak control-field regime, strong competition leads to an alternating oscillation between TWM and FWM signals and this oscillation is a signature of strong energy exchange between these two nonlinear processes. In particular, such oscillation is absent from conventional multiwave mixing in atomic systems. Surprisingly, synchronous TWM and FWM processes are demonstrated in the strong control-field regime and, at the same time, their efficiencies can be as high as 42 and 47%, respectively. Our paper shows that these competitive behaviors between TWM and FWM can be manipulated by tuning the control-field intensity.
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