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PHOTONIC DEVICES

Quantum underpinnings of an all-photonic switch

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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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Fig. 1: Photon–photon correlations in an all-optical switch.

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Authors and Affiliations

  1. Department of Physics, University of California, Davis, Davis, CA, USA

    Victoria A. Norman

  2. Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA, USA

    Victoria A. Norman & Marina Radulaski

Authors
  1. Victoria A. Norman
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  2. Marina Radulaski
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Correspondence to Marina Radulaski.

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The authors declare no competing interests.

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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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