All-optical devices hold promise as a platform for ultralow-power, sub-nanosecond photonic classical and quantum information processing. Measurements of the dynamics of a single photon switch unveil the quantum correlations at the root of its operation.
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Norman, V.A., Radulaski, M. Quantum underpinnings of an all-photonic switch. Nat. Phys. 18, 1139–1140 (2022). https://doi.org/10.1038/s41567-022-01736-3
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DOI: https://doi.org/10.1038/s41567-022-01736-3