1204.5499 (G. Brida et al.)

Unveiling optical hidden correlations: the illusionist game    [PDF]

G. Brida, I. P. Degiovanni, M. Genovese, A. Meda, S. Olivares, M. G. A. Paris

We suggest and demostrate an experimental scheme to illustrate and exploit Gaussian correlations of quantum states of light. In our setup, termed the optical illusionist game, an illusionist at first shows that if two uncorrelated light beams excited in the same Gaussian state are mixed in a beam splitter, then no correlations arise between them, as it was not present. On the other hand, when correlations with an ancillary state are taken into account, the presence of the beam splitter can be unveiled.

View original: http://arxiv.org/abs/1204.5499