基于级联四波混频过程产生的多量子相关光束的双量子关联特性。

Characterization of Pairwise Correlations from Multiple Quantum Correlated Beams Generated from Cascaded Four-Wave Mixing Processes.

机构信息

State Key Laboratory of Precision Spectroscopy, School of Physics and Materials Science, East China Normal University, Shanghai 200062, People's Republic of China.

Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, People's Republic of China.

出版信息

Sci Rep. 2017 Jan 10;7:40410. doi: 10.1038/srep40410.

DOI:10.1038/srep40410

PMID:28071759

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5223188/

Abstract

We theoretically characterize the performance of the pairwise correlations (PCs) from multiple quantum correlated beams based on the cascaded four-wave mixing (FWM) processes. The presence of the PCs with quantum corre- lation in these systems can be verified by calculating the degree of intensity difference squeezing for any pair of all the output fields. The quantum correlation characteristics of all the PCs under different cascaded schemes are also discussed in detail and the repulsion effect between PCs in these cascaded FWM processes is theoretically predicted. Our results open the way for the classification and application of quantum states generated from the cascaded FWM processes.

摘要

我们从级联四波混频（FWM）过程的角度出发，从理论上对多量子相关光束的二阶相关函数的性能进行了分析。通过计算任意两个输出场之间的强度差压缩程度，可以验证这些系统中具有量子相关性的二阶相关函数的存在。此外，我们还详细讨论了不同级联方案下所有二阶相关函数的量子相关特性，并从理论上预测了这些级联 FWM 过程中二阶相关函数之间的排斥效应。我们的研究结果为分类和应用级联 FWM 过程产生的量子态开辟了道路。