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Paper detail

Twin Quantum Cheshire Photons

In an experiment with both pre- and post-selection one can find a photon (the cat) in one place and its polarization (the smile) in another. Aharonov et al. asked recently whether more than two degrees of freedom could be separated in the same way. We show that this is possible and that the separation of properties from objects that carry them is in some situations even stronger.

preprint2014arXivOpen access
Issam IbnouhseinAlexei Grinbaum
quant-ph
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Issam IbnouhseinAlexei Grinbaum

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