On-Chip Generation and Collectively Coherent Control of the Superposition of the Whole Family of Dicke States,Physical Review Letters

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On-Chip Generation and Collectively Coherent Control of the Superposition of the Whole Family of Dicke States
Physical Review Letters ( IF 8.1 ) Pub Date : 2023-05-30 , DOI: 10.1103/physrevlett.130.223601
Leizhen Chen ₁ , Liangliang Lu _{1,

2} , Lijun Xia ₁ , Yanqing Lu ₁ , Shining Zhu ₁ , Xiao-Song Ma _{1,

3,

4}

Affiliation

Integrated quantum photonics has recently emerged as a powerful platform for generating, manipulating, and detecting entangled photons. Multipartite entangled states lie at the heart of the quantum physics and are the key enabling resources for scalable quantum information processing. Dicke state is an important class of genuinely entangled state, which has been systematically studied in the light-matter interactions, quantum state engineering, and quantum metrology. Here, by using a silicon photonic chip, we report the generation and collectively coherent control of the entire family of four-photon Dicke states, i.e., with arbitrary excitations. We generate four entangled photons from two microresonators and coherently control them in a linear-optic quantum circuit, in which the nonlinear and linear processing are achieved in a chip-scale device. The generated photons are in telecom band, which lays the groundwork for large-scale photonic quantum technologies for multiparty networking and metrology.

中文翻译：

全族迪克态叠加的片上生成和集体相干控制

集成量子光子学最近已成为生成、操纵和检测纠缠光子的强大平台。多部分纠缠态是量子物理学的核心，也是可扩展量子信息处理的关键支持资源。迪克态是一类重要的真正纠缠态，在光与物质相互作用、量子态工程和量子计量学中得到了系统的研究。在这里，通过使用硅光子芯片，我们报告了整个四光子迪克态家族（即任意激发）的生成和集体相干控制。我们从两个微谐振器产生四个纠缠光子，并在线性光量子电路中对它们进行相干控制，其中非线性和线性处理在芯片级设备中实现。

更新日期：2023-05-30

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