Our paper on “density ripple” measurements of two-point correlation in expanding 1D quasicondensate has just been published in PRA:

Stephanie Manz, Robert Bücker, Thomas Betz, Christian Koller, Sebastian Hofferberth, Igor Mazets, A. Imambekov, Eugene Demler, Aurélien Perrin, Jörg Schmiedmayer and Thorsten Schumm

Two-point density correlations of quasicondensates in free expansion

Phys. Rev. A, 2010, Vol. 81(3), pp. 031610