A semiconductor quantum dot that generates polarization-entangled photon pairs on demand has been realized, marking an important milestone for scalable integrated quantum photonics and information processing.
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Aharonovich, I. Clearly identical photons. Nat. Nanotechnol. 14, 502–503 (2019). https://doi.org/10.1038/s41565-019-0440-z
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DOI: https://doi.org/10.1038/s41565-019-0440-z
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