中国物理B ›› 2025, Vol. 34 ›› Issue (4): 44201-044201.doi: 10.1088/1674-1056/ada9db

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Nonclassicality of photons in mean-field anisotropic quantum light-matter interacting lattices: Two-photon correlation function and quadrature squeezing

Xu-Min Chen(陈许敏)1, Pei-Yao Chen(陈佩瑶)1, and Chen Wang(王晨)2,†   

  1. 1 Department of Physics, Hangzhou Dianzi University, Hangzhou 310018, China;
    2 Department of Physics, Zhejiang Normal University, Jinhua 321004, China
  • 收稿日期:2024-11-10 修回日期:2024-12-28 接受日期:2025-01-14 出版日期:2025-04-15 发布日期:2025-04-15
  • 通讯作者: Chen Wang E-mail:wangchen@zjnu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11874011) and the Opening Project of Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology.

Nonclassicality of photons in mean-field anisotropic quantum light-matter interacting lattices: Two-photon correlation function and quadrature squeezing

Xu-Min Chen(陈许敏)1, Pei-Yao Chen(陈佩瑶)1, and Chen Wang(王晨)2,†   

  1. 1 Department of Physics, Hangzhou Dianzi University, Hangzhou 310018, China;
    2 Department of Physics, Zhejiang Normal University, Jinhua 321004, China
  • Received:2024-11-10 Revised:2024-12-28 Accepted:2025-01-14 Online:2025-04-15 Published:2025-04-15
  • Contact: Chen Wang E-mail:wangchen@zjnu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11874011) and the Opening Project of Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology.

摘要: The generation of nonclassical photons via quantum light-matter interactions is of fundamental importance in quantum optics. Here we investigate steady-state two-photon correlation function and photon squeezing in an open anisotropic Rabi lattice by applying quantum dressed master equation embedded with the mean-field approximation. The expanded antibunching effect of photons due to anisotropic qubit-photon interaction, is strongly suppressed by including inter-site photon tunneling, whereas the giant photon bunching keeps robust with weak inter-site photon tunneling strength. The microscopic processes for photon antibunching and bunching effects are presented based on incoherent transitions between eigenstates. The photon squeezing is also analyzed under the influences of qubit-photon coupling and anisotropic factor. The quadrature squeezing shows persistency by tuning on the inter-site photon tunneling, and becomes dramatically pronounced at the small anisotropic factor. Moreover, the increasing number of qubits significantly enhances quadrature squeezing with strong qubit-photon interaction. We hope such results may provide physical insights into efficient generation and manipulation of nonclassical features of photons in quantum light-matter interacting lattice systems.

关键词: quantum optics, photon statistics and coherence theory, coherent control of atomic interactions with photons

Abstract: The generation of nonclassical photons via quantum light-matter interactions is of fundamental importance in quantum optics. Here we investigate steady-state two-photon correlation function and photon squeezing in an open anisotropic Rabi lattice by applying quantum dressed master equation embedded with the mean-field approximation. The expanded antibunching effect of photons due to anisotropic qubit-photon interaction, is strongly suppressed by including inter-site photon tunneling, whereas the giant photon bunching keeps robust with weak inter-site photon tunneling strength. The microscopic processes for photon antibunching and bunching effects are presented based on incoherent transitions between eigenstates. The photon squeezing is also analyzed under the influences of qubit-photon coupling and anisotropic factor. The quadrature squeezing shows persistency by tuning on the inter-site photon tunneling, and becomes dramatically pronounced at the small anisotropic factor. Moreover, the increasing number of qubits significantly enhances quadrature squeezing with strong qubit-photon interaction. We hope such results may provide physical insights into efficient generation and manipulation of nonclassical features of photons in quantum light-matter interacting lattice systems.

Key words: quantum optics, photon statistics and coherence theory, coherent control of atomic interactions with photons

中图分类号:  (Quantum optics)

  • 42.50.-p
32.80.Qk (Coherent control of atomic interactions with photons)