期刊
SCIENCE
卷 381, 期 6654, 页码 221-226出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.adg9210
关键词
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This study demonstrates a multichip multidimensional quantum entanglement network based on integrated-nanophotonic quantum node chips. Multiple multidimensional entangled states can be distributed across multiple chips using hybrid multiplexing and few-mode fibers. The study also developed a technique for efficiently retrieving multidimensional entanglement in complex-medium quantum channels.
Quantum networks provide the framework for quantum communication, clock synchronization, distributed quantum computing, and sensing. Implementing large-scale and practical quantum networks relies on the development of scalable architecture and integrated hardware that can coherently interconnect many remote quantum nodes by sharing multidimensional entanglement through complex-medium quantum channels. We demonstrate a multichip multidimensional quantum entanglement network based on mass-manufacturable integrated-nanophotonic quantum node chips fabricated on a silicon wafer by means of complementary metal-oxide-semiconductor processes. Using hybrid multiplexing, we show that multiple multidimensional entangled states can be distributed across multiple chips connected by few-mode fibers. We developed a technique that can efficiently retrieve multidimensional entanglement in complex-medium quantum channels, which is important for practical uses. Our work demonstrates the enabling capabilities of realizing large-scale practical chip-based quantum entanglement networks.
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