The emission of light from qubits in a superconducting circuit can be controlled in order to choose the direction of the photons’ propagation, which could be used to route information in quantum networks.
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Gasparinetti, S. Photons go one way or another. Nat. Phys. 19, 310–311 (2023). https://doi.org/10.1038/s41567-022-01896-2
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DOI: https://doi.org/10.1038/s41567-022-01896-2
