Dressed-state engineering for continuous detection of itinerant microwave photons

作者:Koshino Kazuki*; Lin Zhirong; Inomata Kunihiro; Yamamoto Tsuyoshi; Nakamura Yasunobu
来源:Physical Review A, 2016, 93(2): 023824.
DOI:10.1103/PhysRevA.93.023824

摘要

We propose a scheme for continuous detection of itinerant microwave photons in circuit quantum electrodynamics. In the proposed device, a superconducting qubit is coupled dispersively to two resonators: one is used to form an impedance-matched Lambda system that deterministically captures incoming photons, and the other is used for continuous monitoring of the event. The present scheme enables efficient photon detection: for realistic system parameters, the detection efficiency reaches 0.9 with a bandwidth of about 10 MHz.

  • 出版日期2016-2-18
  • 单位RIKEN