中国物理B ›› 2023, Vol. 32 ›› Issue (12): 124203-124203.doi: 10.1088/1674-1056/acf662

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Dynamic modulated single-photon routing

Hao-Zhen Li(李浩珍)1,2,3, Ran Zeng(曾然)1,†, Miao Hu(胡淼)1,‡, Mengmeng Xu(许蒙蒙)1, Xue-Fang Zhou(周雪芳)1, Xiuwen Xia(夏秀文)4, Jing-Ping Xu(许静平)3, and Ya-Ping Yang(羊亚平)3   

  1. 1 School of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;
    2 Zhejiang Province Key Laboratory of Quantum Technology and Device, Zhejiang University, Hangzhou 310027, China;
    3 Key Laboratory of Advanced Micro-Structured Materials of Ministry of Education, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;
    4 Institute of Atomic and Molecular Physics and Functional Materials, School of Mathematics and Physics, Jinggangshan University, Ji'an 343009, China
  • 收稿日期:2023-07-25 修回日期:2023-09-03 接受日期:2023-09-04 出版日期:2023-11-14 发布日期:2023-11-30
  • 通讯作者: Ran Zeng, Miao Hu E-mail:zengran@hdu.edu.cn;miao_hu@foxmail.com
  • 基金资助:
    Project supported by China Postdoctoral Science Foundation (Grant No.2023M732028), the Fund from Zhejiang Province Key Laboratory of Quantum Technology and Device (Grant No.20230201), the Fundamental Research Funds for the Provincial Universities of Zhejiang Province, China (Grant No.GK199900299012-015), the Natural Science Foundation of Zhejiang Province, China (Grant No.LY21A040003), the National Natural Science Foundation of China (Grant Nos.12164022, 12174288, and 12274326), and the Natural Science Foundation of Jiangxi Province, China (Grant No. 20232BAB201044).

Dynamic modulated single-photon routing

Hao-Zhen Li(李浩珍)1,2,3, Ran Zeng(曾然)1,†, Miao Hu(胡淼)1,‡, Mengmeng Xu(许蒙蒙)1, Xue-Fang Zhou(周雪芳)1, Xiuwen Xia(夏秀文)4, Jing-Ping Xu(许静平)3, and Ya-Ping Yang(羊亚平)3   

  1. 1 School of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;
    2 Zhejiang Province Key Laboratory of Quantum Technology and Device, Zhejiang University, Hangzhou 310027, China;
    3 Key Laboratory of Advanced Micro-Structured Materials of Ministry of Education, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;
    4 Institute of Atomic and Molecular Physics and Functional Materials, School of Mathematics and Physics, Jinggangshan University, Ji'an 343009, China
  • Received:2023-07-25 Revised:2023-09-03 Accepted:2023-09-04 Online:2023-11-14 Published:2023-11-30
  • Contact: Ran Zeng, Miao Hu E-mail:zengran@hdu.edu.cn;miao_hu@foxmail.com
  • Supported by:
    Project supported by China Postdoctoral Science Foundation (Grant No.2023M732028), the Fund from Zhejiang Province Key Laboratory of Quantum Technology and Device (Grant No.20230201), the Fundamental Research Funds for the Provincial Universities of Zhejiang Province, China (Grant No.GK199900299012-015), the Natural Science Foundation of Zhejiang Province, China (Grant No.LY21A040003), the National Natural Science Foundation of China (Grant Nos.12164022, 12174288, and 12274326), and the Natural Science Foundation of Jiangxi Province, China (Grant No. 20232BAB201044).

摘要: The dynamic control of single-photon scattering in a pair of one-dimensional waveguides mediated by a time-modulated atom-cavity system is investigated. Two cases, where the waveguides are coupled symmetrically or asymmetrically to the atom-cavity system, are discussed in detail. The results show that such time-modulated atom-cavity configuration can behave as a dynamical tunable directional single-photon router. The photons with different frequencies can dynamically be routed from the incident waveguide into any ports of the other with a 100% probability via adjusting the modulated amplitude or phases of the time-modulated atom-cavity coupling strengths, associate with the help of the asymmetrical waveguide-cavity couplings. Furthermore, the influence of dissipation on the routing capability is investigated. It is shown that the present single-photon router is robust against the dissipative process of the system, especially the atomic dissipation. These results are expected to be applicable in quantum information processing and design quantum devices with dynamical modulation.

关键词: single-photon router, dynamical modulation, waveguide-QED

Abstract: The dynamic control of single-photon scattering in a pair of one-dimensional waveguides mediated by a time-modulated atom-cavity system is investigated. Two cases, where the waveguides are coupled symmetrically or asymmetrically to the atom-cavity system, are discussed in detail. The results show that such time-modulated atom-cavity configuration can behave as a dynamical tunable directional single-photon router. The photons with different frequencies can dynamically be routed from the incident waveguide into any ports of the other with a 100% probability via adjusting the modulated amplitude or phases of the time-modulated atom-cavity coupling strengths, associate with the help of the asymmetrical waveguide-cavity couplings. Furthermore, the influence of dissipation on the routing capability is investigated. It is shown that the present single-photon router is robust against the dissipative process of the system, especially the atomic dissipation. These results are expected to be applicable in quantum information processing and design quantum devices with dynamical modulation.

Key words: single-photon router, dynamical modulation, waveguide-QED

中图分类号:  (Quantum optics)

  • 42.50.-p
42.50.Pq (Cavity quantum electrodynamics; micromasers) 03.65.-w (Quantum mechanics)