Quantum Computing · score 0.00 · 46 entries · last updated 5/20/2026, 2:17:12 AM

New way to measure entangled photons

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First Technique to Measure Complete Spatial Schmidt Modes of Entangled Two-Photon States Without Prior Knowledge

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First Technique to Measure Complete Spatial Schmidt Modes of Entangled Two-Photon States Without Prior Knowledge

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arxiv5/19/2026, 2:38:13 AM

First Technique to Measure Complete Spatial Schmidt Modes of Entangled Two-Photon States Without Prior Knowledge

A new measurement technique enables full characterization of the spatial Schmidt basis of entangled two-photon fields generated via SPDC — without requiring any prior knowledge of the basis. Prior art could only reconstruct Schmidt spectra when the basis was already known. The au…