2005/03/16 by J. K. Nilsen, J. Mur-Petit, M. Guilleumas +2
Physics and Astronomy · #cond-mat.other
paper · pdf · doi:10.1103/physreva.71.053610
published as Phys. Rev. A 71, 053610 (2005) · To appear in Phys Rev A 71
arxiv created 2005/03/16 · arxiv updated 2009/12/01
In this work we compare the results of the Gross-Pitaevskii and modified Gross-Pitaevskii equations with ab initio variational Monte Carlo calculations for Bose-Einstein condensates of atoms in axially symmetric traps. We examine both the ground state and excited states having a vortex line along the z-axis at high values of the gas parameter and demonstrate an excellent agreement between the modified Gross-Pitaevskii and ab initio Monte Carlo methods, both for the ground and vortex states.