A chip-scale single-photon SWAP gate as integrated interface between polarization and spatial-momentum qubits

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Xie Z., Li Y., Xu X., Kumar A., Kocaman S., Zhong T., ...More

Conference on Lasers and Electro-Optics (CLEO), San-Jose, Costa Rica, 14 - 19 May 2017

• Publication Type: Conference Paper / Full Text
• City: San-Jose
• Country: Costa Rica
• Middle East Technical University Affiliated: Yes

Abstract

We demonstrate a single-photon SWAP gate between polarization and spatial momentum on a SOI chip. 19.8% error ratio is obtained, and phase coherence of the SWAP operation is measured via single photon interference with up to 58.7% visibility.