Exotic Looped Trajectories of Photons in Three-Slit Interference

O. S. Magaña-Loaiza, I. D. Leon, M. Mirhosseini, R. Fickler, A. Safari, U. Mick, B. McIntyre, P. Banzer, B. Rodenburg, G. Leuchs, and R. W. Boyd, Nat. Commun. 7, 13987 (2016).

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