Fourier Relationship Between the Angle and Angular Momentum of Entangled Photons

A. K. Jha, B. Jack, E. Yao, J. Leach, R. W. Boyd, G. S. Buller, S. M. Barnett, S. Franke-Arnold, and M. J. Padgett, Phys. Rev. A 78, 043810 (2008).

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