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

被引：2
|
作者：
Huang Wen [1 ,2 ]
Zou Xu-Bo [1 ,2 ]
Guo Guang-Can [1 ,2 ]
机构：
[1] Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Peoples R China
来源：
CHINESE PHYSICS B | 2015年 / 24卷 / 06期
基金：
中国国家自然科学基金;
关键词：
circuit quantum electrodynamics; two-photon laser; superconducting Josephson junction; SUPERCONDUCTING QUBIT; LASER; STATE; DYNAMICS; HAMILTONIANS; INFORMATION;
D O I：
10.1088/1674-1056/24/6/064207
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
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.
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页数：7
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