In this paper we present a quantum Cheshire Cat. In a pre- and post-selected experiment we find the Cat in one place, and its grin in another. The Cat is a photon, while the grin is its circular polarization.
Aharonov, Yakir, Sandu Popescu, Daniel Rohrlich, and Paul Skrzypczyk. "Quantum Cheshire Cats." New Journal of Physics 15.11 (2013): 113015. doi: 10.1088/1367-2630/15/11/113015
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