Generation of entanglement statistics with a large-scale integrated photonic-electronic circuit

• URL: http://arxiv.org/abs/2609.06471v1
• Date: Sun, 06 Sep 2026 08:37:35 GMT
• Title: Generation of entanglement statistics with a large-scale integrated photonic-electronic circuit
• Abstract summary: Continuous-variable quantum processors scale with the modes they can transform, and each transformation adds loss.<n>We demonstrate optoelectronic quantum information processing, moving the mixing into radio-frequency electronics after homodyne detection.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Continuous-variable quantum processors scale with the modes they can transform, and each transformation adds loss. We demonstrate optoelectronic quantum information processing, moving the mixing into radio-frequency electronics after homodyne detection. Squeezed vacuum falls on a large-scale integrated photonic-electronic circuit, a 32-channel coherent receiver array whose radio-frequency network mixes the analog photocurrents. A local-oscillator ramp reconstructs the two-mode covariance at the aperture, which is physical, and its partial transpose has smallest symplectic eigenvalue 0.99270, three standard deviations below the separability bound. Mode transformation becomes a circuit function whose scale follows integrated electronics. With electro-optic transducers in place of the photodiodes, the same receiver would transfer optical modes into superconducting circuits and back, toward a photonic-electronic quantum computer spanning the optical and microwave bands.

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