Tunable single-photon routing between two single-mode waveguides by a giant A-type three-level atom

被引：1

作者：

Zhang, Yu-Qing ^{[1
,2
]}

Zhu, Zhong-Hua ^{[1
]}

Peng, Zhao-Hui ^{[1
]}

Yin, Wen-Jin ^{[1
]}

Yang, Ying ^{[1
]}

Zhao, Yu-Qing ^{[1
]}

Lu, Zhen-Yan ^{[1
]}

Chai, Yi-Feng ^{[1
]}

Xiong, Zu-Zhou ^{[3
]}

Tan, Lei ^{[4
]}

机构：

[1] Hunan Univ Sci & Technol, Sch Phys & Elect Sci, Xiangtan 411201, Peoples R China

[2] Hunan Prov Key Lab Intelligent Sensors & Adv Senso, Xiangtan 411201, Peoples R China

[3] Gannan Normal Univ, Sch Phys & Elect, Ganzhou 341000, Peoples R China

[4] Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China

来源：

OPTIK | 2023年 / 274卷

基金：

中国国家自然科学基金;

关键词：

Three-level atom; Single photon; Quantum routing; Waveguide;

D O I：

10.1016/j.ijleo.2023.170568

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We explore the influence of a giant Lambda-type three-level atom on the modulation of single photon quantum routing in two channels composed of two linear waveguides. The results show that the single photon scattering behavior is strongly dependent on the phase difference between the two atom-waveguide coupling points, and the coupling strengths between the giant atom and the waveguides. To improve the efficiency of the quantum routing, another configuration with a terminated waveguide is proposed. We find the single-photon routing probability can reach 100% through adjusting the phase shifts induced by the giant atom and the terminated waveguide. The effects of the driving field on the quantum routing are also investigated. Our work may provide a feasible approach to control the single-photon quantum routing using the giant-atom setup.

引用

页数：13

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