Genuine tripartite non-Gaussian entanglement generated by triple-photon parametric down-conversion

被引：0

作者：

Ma, Shuangquan ^{[1
]}

Zhang, Dayang ^{[1
]}

Zhao, Yu ^{[1
]}

Yu, Youbin ^{[1
]}

Jin, Guangri ^{[1
]}

Chen, Aixi ^{[1
]}

机构：

[1] Zhejiang Sci Tech Univ, Dept Phys, Zhejiang Key Lab Quantum State Control & Opt Field, Hangzhou 310018, Peoples R China

来源：

PHYSICS LETTERS A | 2025年 / 532卷

基金：

中国国家自然科学基金;

关键词：

3-COLOR ENTANGLEMENT; QUANTUM; STATES;

D O I：

10.1016/j.physleta.2024.130195

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Non-Gaussian states play a crucial role in continuous-variable quantum information. However, there are few reports on multipartite non-Gaussian entanglement. Here, the genuine tripartite non-Gaussian entanglement produced by triple-photon parametric down-conversion in an optical cavity is investigated. Triple-photon parametric down-conversion is a third-order nonlinear process which is different from the two-photon parametric down-conversion process. A three-dimensional optical superlattice can achieve three-dimensional phase-matching for the three-photon parametric down-conversion process. A cavity is included in the triple- photon down-conversion to enhance the nonlinear conversion efficiency. By utilizing the criterion for genuine tripartite non-Gaussian entanglement, it is demonstrated that the capability to control non-Gaussian entanglement properties by adjusting the parameters of the nonlinear process within a wide range. The genuine non-Gaussian entanglement can also be generated after injection a signal. The results are helpful to understand quantum correlations among optical fields generated by three-photon parametric down-conversion and have potential applications in quantum information processing.

引用

页数：6

共 52 条

[51] Enhanced intensity-difference squeezing via energy-level modulations in hot atomic media [J].