Squeezed states

A bridge between the single-photon and squeezed-vacuum states
N. Jain, S. R. Huisman, E. Bimbard, and A. I. Lvovsky
Opt. Express 18, 18254-18259 (2010)

Observation of spatial quantum correlations induced by multiple scattering of non-classical light
S. Smolka, A. Huck, U. L. Andersen, A. Lagendijk, and P. Lodahl
Phys. Rev. Lett. 102, 193901: 1-4 (2009)