Volume 533, Issue 4 2100006
Research Article

Three-Mode Squeezing of Simultaneous and Ordinal Cascaded Four-Wave Mixing Processes in Rubidium Vapor

Wei Li

Wei Li

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an, 710049 China

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Changbiao Li

Changbiao Li

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an, 710049 China

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Mengqi Niu

Mengqi Niu

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an, 710049 China

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Binshuo Luo

Binshuo Luo

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an, 710049 China

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Irfan Ahmed

Irfan Ahmed

Department of Physics, City University of Hong Kong, Kowloon, Hong Kong SAR, 999077 China

Electrical Engineering Department, Sukkur IBA University, Sindh, 65200 Pakistan

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Yin Cai

Corresponding Author

Yin Cai

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an, 710049 China

E-mail: [email protected]

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Yanpeng Zhang

Yanpeng Zhang

Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of Information Photonic Technique, Xi'an Jiaotong University, Xi'an, 710049 China

Yin Cin and Yanpeng Zhang are Co-corresponding author.

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First published: 09 March 2021
Citations: 9

Abstract

Multipartite quantum correlation plays a vital role in potential applications of quantum technologies. In this paper, using energy-level cascaded four-wave mixing (EC-FWM) process, a scheme to produce quantum correlated three-mode light beams within a single device of hot atomic medium of rubidium is proposed. Two- and three-mode amplitude, phase quadrature squeezing and intensity difference squeezing using energy-level simultaneous cascaded FWM (ESC-FWM) method and energy-level ordinal cascaded FWM (EOC-FWM) method, respectively, is theoretically reported. Via investigating their covariance matrix properties, the comparison has been made between the two methods, which shows the ESC-FWM method has a more stable mode structure than EOC-FWM method. Moreover, versatile gain dependent squeezing via EC-FWM is studied and analytical expressions are given. These results show a simplified and efficient experimental scheme producing multipartite quantum correlation among multiple spatially separated beams.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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