Highly pure 4-qubit states fully integrated in a programmable silicon-photonic chip.

Jong-Moo Lee, Jiho Park, Jeongho Bang, Young-Ik Sohn,Alessio Baldazzi,Matteo Sanna,Stefano Azzini,Lorenzo Pavesi

Optical Fiber Communications Conference and Exhibition（2024）

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摘要

We demonstrate 98% Hong-Ou-Mandel (HOM) visibility, 82% Greenberger–Horne–Zeilinger (GHZ) fidelity, and Bell’s inequality violations by 4-photon coincident measurements using a silicon-photonic chip including photon-pair sources, filters, and linear-optic gates.

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关键词

Silicon Photonic Chip,Quantum,Communication Network,Density Matrix,Pump Power,Entangled State,Mach-Zehnder Interferometer,Classical Physics,Photon Pairs,Four-wave Mixing,Variable Switching,Violation Of Inequality

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