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Large-scale cluster quantum microcombs

delete2025-04-16
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OA
AI
Z
Ze Wang
K
Kangkang Li
Y
Yue Wang
周
周新 (Xin Zhou)
Y
Y. H. Cheng
B
Boxuan Jing
S
Sun, Fengxiao
J
Jincheng Li
Z
Zhilin Li
W
Wu, Bingyan
龚
龚旗煌 (Qihuang Gong)
Q
Qiongyi He
Y
Yang, Qi-Fan *
DOI：10.1038/s41377-025-01812-2delete
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Abstract

Abstract

En 中文
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.
Keywords:
COMPUTATIONAL ADVANTAGE
SEPARABILITY CRITERION
STATES
GENERATION

Journal

L
Light Science and Applications
IF:
23.4
Papers:
437
Citations:
3.0W

Organization

No organization information available