A Phase-Coherent On-Chip Single-Photon SWAP Gate

Xiang Cheng,Zhenda Xie,Kai-Chi Chang,Murat Can Sarihan,Yoo Seung Lee,Yongnan Li,Mingbin Yu,Dim-Lee Kwong,Jeffrey H. Shapiro,Franco N. C. Wong,Chee Wei Wong

Conference on Lasers and Electro-Optics（2022）

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摘要

We demonstrate a single-photon SWAP gate between polarization and spatial-momentum qubits on a silicon-on-oxide chip. Phase coherence of the SWAP gate operation is confirmed via single-photon self-interference, with visibility up to 98.89%.

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关键词

Phase-Coherent On-Chip Single-Photon SWAP Gate,spatial-momentum qubits,silicon-on-oxide chip,phase coherence,SWAP gate operation

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