中国物理B ›› 2015, Vol. 24 ›› Issue (6): 64207-064207.doi: 10.1088/1674-1056/24/6/064207

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

A scheme for two-photon lasing with two coupled flux qubits in circuit quantum electrodynamics

黄文a b, 邹旭波a b, 郭光灿a b   

  1. a Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China;
    b Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2014-09-25 修回日期:2014-12-22 出版日期:2015-06-05 发布日期:2015-06-05
  • 基金资助:

    Project supported by the National Fundamental Research Program of China (Grant No. 2011cba00200), the National Natural Science Foundation of China (Grant No. 11274295), and the Doctor Foundation of Education Ministry of China (Grant No. 20113402110059).

A scheme for two-photon lasing with two coupled flux qubits in circuit quantum electrodynamics

Huang Wen (黄文)a b, Zou Xu-Bo (邹旭波)a b, Guo Guang-Can (郭光灿)a b   

  1. a Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China;
    b Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
  • Received:2014-09-25 Revised:2014-12-22 Online:2015-06-05 Published:2015-06-05
  • Contact: Zou Xu-Bo E-mail:xbz@ustc.edu.cn
  • About author:42.50.Pq; 42.55.Ah; 85.25.Cp; 85.25.Hv
  • Supported by:

    Project supported by the National Fundamental Research Program of China (Grant No. 2011cba00200), the National Natural Science Foundation of China (Grant No. 11274295), and the Doctor Foundation of Education Ministry of China (Grant No. 20113402110059).

摘要:

We theoretically study the system of a superconducting transmission line resonator coupled to two interacting superconducting flux qubits. It is shown that under certain conditions the resonator mode can be tuned to two-photon resonance between the ground state and the highest excited state while the middle excited states are far-off resonance. Furthermore, we study the steady-state properties of the flux qubits and resonator, such as the photon statistics, the spectrum and squeezing of the resonator, and demonstrate that two-photon laser can be implemented with current experimental technology.

关键词: circuit quantum electrodynamics, two-photon laser, superconducting Josephson junction

Abstract:

We theoretically study the system of a superconducting transmission line resonator coupled to two interacting superconducting flux qubits. It is shown that under certain conditions the resonator mode can be tuned to two-photon resonance between the ground state and the highest excited state while the middle excited states are far-off resonance. Furthermore, we study the steady-state properties of the flux qubits and resonator, such as the photon statistics, the spectrum and squeezing of the resonator, and demonstrate that two-photon laser can be implemented with current experimental technology.

Key words: circuit quantum electrodynamics, two-photon laser, superconducting Josephson junction

中图分类号:  (Cavity quantum electrodynamics; micromasers)

  • 42.50.Pq
42.55.Ah (General laser theory) 85.25.Cp (Josephson devices) 85.25.Hv (Superconducting logic elements and memory devices; microelectronic circuits)