Using a single atom in a cavity to control a propagating optical pulse can deterministically create a Schrödinger-cat state — an intriguing quantum superposition of classically distinct states. The result is a new opportunity for quantum state engineering with potential applications in quantum networks and computation.
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Duan, L. Creating Schrödinger-cat states. Nature Photon 13, 73–74 (2019). https://doi.org/10.1038/s41566-018-0340-z
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DOI: https://doi.org/10.1038/s41566-018-0340-z
