Large-scale cluster quantum microcombs

Ze Wang; Kangkang Li; Yue Wang; Xin Zhou; Yinke Cheng; Boxuan Jing; Fengxiao Sun; Jincheng Li; Zhilin Li; Bingyan Wu; Qihuang Gong; Qiongyi He; Bei-Bei Li; Qi-Fan Yang

doi:10.1038/s41377-025-01812-2

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Large-scale cluster quantum microcombs

Original Articles

- Large-scale cluster quantum microcombs
- Large-scale cluster quantum microcombs
- LSA 2025年14卷第6期页码：1655-1661
- Affiliations：
  
  1.State Key Laboratory for Artificial Microstructure and Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China
  2.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, 100190 Beijing, China
  3.Collaborative Innovation Center of Extreme Optics, Shanxi University, 030006 Taiyuan, China
  4.Peking University Yangtze Delta Institute of Optoelectronics, 226010 Nantong, Jiangsu, China
  5.Hefei National Laboratory, 230088 Hefei, China
- Author bio：
  
  Kangkang Li (kangkangli@pku.edu.cn)
  Qiongyi He (qiongyihe@pku.edu.cn)
  Bei-Bei Li (libeibei@iphy.ac.cn)
  Qi-Fan Yang (leonardoyoung@pku.edu.cn)
- Funds：
- DOI：10.1038/s41377-025-01812-2
  中图分类号：
- 收稿日期：2025-01-23，
  
  修回日期：2025-02-07，
  
  录用日期：2025-03-04，
  
  网络出版日期：2025-04-16，
  
  纸质出版日期：2025-06-30
- Accepted：
Scan QR Code
Large-scale cluster quantum microcombs[J]. LSA, 2025,14(6):1655-1661.

Wang, Z. et al. Large-scale cluster quantum microcombs. Light: Science & Applications, 14, 1655-1661 (2025).
Large-scale cluster quantum microcombs[J]. LSA, 2025,14(6):1655-1661. DOI： 10.1038/s41377-025-01812-2.

Wang, Z. et al. Large-scale cluster quantum microcombs. Light: Science & Applications, 14, 1655-1661 (2025). DOI： 10.1038/s41377-025-01812-2.

摘要

Abstract

An optical frequency comb comprises a cluster of equally spaced

phase-locked spectral lines. Replacing these classical components with correlated quantum light gives rise to cluster quantum frequency combs

providing abundant quantum resources for measurement-based quantum computation

and multi-user quantum networks. We propose and generate cluster quantum microcombs within an on-chip optical microresonator driven by multi-frequency lasers. Through resonantly enhanced four-wave mixing processes

continuous-variable cluster states with 60 qumodes are deterministically created. The graph structures can be programmed into one- and two-dimensional lattices by adjusting the configurations of the pump lines

which are confirmed inseparable based on the measured covariance matrices. Our work demonstrates the largest-scale cluster states with unprecedented raw squeezing levels from a photonic chip

offering a compact and scalable platform for computational and communicational tasks with quantum advantages.

关键词

Keywords

references

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