title: Eliminating the mean-field shift in two-component bose-einstein condensates
abstract: We demonstrate that the nonlinear mean-field shift in a multicomponent Bose-Einstein condensate may be eliminated by controlling the two-body interaction coefficients. This modification can be achieved by engineering the environment of the condensate. We consider the case of a two-component condensate in a quasi-one-dimensional atomic waveguide, achieving modification of the atom-atom interactions by varying the transverse wave functions of the components. Eliminating the density-dependent phase shift represents a promising potential application for multicomponent condensates in atom interferometry and precision measurements.
authors: Optical Sciences Center, University of Arizona, Tucson, Arizona 85721, USA.
authors: EV
authors: Goldstein
authors: MG
authors: Moore
authors: H
authors: Pu
authors: P
authors: Meystre