Atomic-coherence-assisted multipartite entanglement generation with dressing-energy-level-cascaded four-wave mixing

被引：13

作者：

Liu, Yuliang ^{[1
]}

Wei, Jiajia ^{[1
]}

Niu, Mengqi ^{[1
]}

Lin, Yixin ^{[1
]}

Chen, Zhili ^{[1
]}

Yan, Jin ^{[1
]}

Luo, Binshuo ^{[1
]}

Li, Feng ^{[1
]}

Cai, Yin ^{[1
]}

Zhang, Yanpeng ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Phys Elect & Devices, Shaanxi Key Lab Informat Photon Tech,Sch Elect Sci, Xian 710049, Shaanxi, Peoples R China

来源：

PHYSICAL REVIEW A | 2022年 / 106卷 / 04期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

QUANTUM; CRITERION; STATES;

D O I：

10.1103/PhysRevA.106.043709

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Multipartite entanglement plays an important role in quantum information processing and quantum metrol-ogy. Here, the dressing-energy-level-cascaded four-wave mixing (FWM) processes are proposed to generate all-optical controlled multipartite entanglement within a single device. The entanglement characteristics of the produced states of light are characterized by applying the Duan criterion and the positivity under partial transposition criterion. Moreover, by using an internal dressing field to modulate atomic coherence, multiple quantum coherent channels of FWM are simultaneously constructed, which result in a great extension of entanglement mode number and quantum information capacity. We find that the violation of the entanglement criteria inequalities is coherent-channel dependent, and the produced states can be directly modulated via atomic coherence. Our system can integrate the generation and modulation of the entangled states in one process. It may help provide a compact method for realizing large-scale quantum networks.

引用

页数：12

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