Spatial interference from well-separated condensates
arXiv:0911.1366 · doi:10.1103/PhysRevA.81.043608
Abstract
We use magnetic levitation and a variable-separation dual optical plug to obtain clear spatial interference between two condensates axially separated by up to 0.25 mm -- the largest separation observed with this kind of interferometer. Clear planar fringes are observed using standard (i.e. non-tomographic) resonant absorption imaging. The effect of a weak inverted parabola potential on fringe separation is observed and agrees well with theory.
4 pages, 5 figures - modified to take into account referees' improvements