@article{2006-gerbier-bloch-phys-rev-lett-v96-p090401,
	Abstract = {The evolution of on-site number fluctuations of ultracold atoms in optical lattices is experimentally investigated by monitoring the suppression of spin-changing collisions across the superfluid-Mott insulator transition. For low atom numbers, corresponding to an average filling factor close to unity, large on-site number fluctuations are necessary for spin-changing collisions to occur. The continuous suppression of spin-changing collisions is thus direct evidence for the emergence of number-squeezed states. In the Mott insulator regime, we find that spin-changing collisions are suppressed until a threshold atom number, consistent with the number where a Mott plateau with doubly occupied sites is expected to form.},
	Author = {Gerbier, F. AND Fölling, S. AND Widera, A. AND Mandel, O. AND Bloch, I.},
	Journal = {Phys. Rev. Lett.},
	Pages = {090401},
	Title = {{Probing Number squeezing of Ultracold Atoms across the Superfluid-Mott Insulator Transition}},
	Volume = {96},
	Year = {2006}
}