Research Output per year
The Gross-Pitaevskii approximation is a long-wavelength theory widely used to describe a variety of properties of dilute Bose condensates, in particular trapped alkali gases. We point out that for short-ranged repulsive interactions this theory fails in dimensions d=2, and we propose the appropriate low-dimensional modifications, which have a universal form. For d=1 we analyze density profiles in confining potentials, superfluid properties, solitons, and self-similar solutions.
14 May 2001, In : Physical Review Letters. 86, 20, p. 4709 1 p.
Research output: Contribution to journal › Comment/debate
Kolomeisky, E. B., Newman, T. J., Straley, J. P., & Qi, X. (2000). Low-dimensional Bose liquids: beyond the Gross-Pitaevskii approximation. Physical Review Letters, 85(6), 1146-1149. https://doi.org/10.1103/PhysRevLett.85.1146