An ultra-high gain single-photon transistor in the microwave regime

  title={An ultra-high gain single-photon transistor in the microwave regime},
  author={Zhiling Wang and Zenghui Bao and Yan Li and Yukai Wu and Weizhou Cai and Weiting Wang and Xiyue Han and Jiahui Wang and Yipu Song and Luyan Sun and Hongyi Zhang and Luming Duan},
  journal={Nature Communications},
A photonic transistor that can switch or amplify an optical signal with a single gate photon requires strong non-linear interaction at the single-photon level. Circuit quantum electrodynamics provides great flexibility to generate such an interaction, and thus could serve as an effective platform to realize a high-performance single-photon transistor. Here we demonstrate such a photonic transistor in the microwave regime. Our device consists of two microwave cavities dispersively coupled to a… 

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