A 12-mode Universal Photonic Processor for Quantum Information Processing

Abstract

Photonic processors are pivotal for both quantum and classical information processing tasks using light. In particular, linear optical quantum information processing requires both largescale and low-loss programmable photonic processors. In this paper, we report the demonstration of the largest universal quantum photonic processor to date: a low-loss, 12-mode fully tunable linear interferometer with all-to-all coupling based on stoichiometric silicon nitride waveguides.

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• Programmable photonic integrated meshes for modular generation of optical entanglement links
• Coherence and contextuality in a Mach-Zehnder interferometer
• Information processing at the speed of light
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• The Goldilocks Principle of Learning Unitaries by Interlacing Fixed Operators with Programmable Phase Shifters on a Photonic Chip
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• High-dimensional quantum key distribution using a multi-plane light converter
• Toward Higher Integration Density in Femtosecond-Laser-Written Programmable Photonic Circuits
• Synchronous micromechanically resonant programmable photonic circuits
• Global calibration of large-scale photonic integrated circuits
• Experimental Simulation of Loop Quantum Gravity on a Photonic Chip
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• Polarization-encoded photonic quantum-to-quantum Bernoulli factory based on a quantum dot source
• The SWITCH test for discriminating quantum evolutions
• A high-fidelity and large-scale reconfigurable photonic processor for NISQ applications
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