Optimal bright multimode quantum squeezing via multi-seeding energy-level cascaded four-wave mixing

• Published in: Optics express Vol. 30; no. 22; pp. 39762 - 39774
• Main Authors: Li, Jiawei, Zeng, Jianhua, Li, Feng, Zhang, Yanpeng, Cai, Yin
• Format: Journal Article
• Language: English
• Published: 24.10.2022
• ISSN: 1094-4087; 1094-4087
• DOI: 10.1364/OE.463900

Quantum Squeezing is one of the most important quantum resources in quantum optics and quantum information. In particular, multimode quantum squeezing, with ultra-low quantum fluctuations and quantum correlations amongst many optical modes, is essential for realizing multipartite entanglement and quantum precision measurements. In this paper, we propose an all-optically controlled scheme to generate three-mode bright quantum correlated beams from energy-level cascaded four-wave mixing (ELC-FWM). By using a linear modes transform approach, the input-output relation and the covariance matrix of the produced states are obtained. Moreover, single-, double- and triple-seeding conditions are investigated to measure the quantum squeezing properties. We find that various permutations of two- and three-mode quadrature squeezing can be generated and optimized to reach the corresponding limit, via only modulating the ratio of the multiple seeds, without need of any post-operating linear optics, e.g., beam splitters. Such weak seeding light controlled scheme suggests the modulation and the optimization of multimode quantum states might be operated at photons-level, providing a reconfigurable and integrated strategy for complex quantum information processing and quantum metrology.