1205.4403 (D. Giovannini et al.)

Determining the dimensionality of bipartite orbital-angular-momentum
entanglement using multi-sector phase masks    [PDF]

D. Giovannini, F. M. Miatto, J. Romero, S. M. Barnett, J. P. Woerdman, M. J. Padgett

The dimensionality of orbital angular momentum (OAM) entanglement produced in spontaneous parametric down-conversion can be probed by using multi-sector phase analysers. We demonstrate a spatial light modulator-based implementation of these analysers, and use it to measure a Schmidt number of about 50.

View original: http://arxiv.org/abs/1205.4403