Vortices in atomic Bose-Einstein condensates in the large-gas-parameter region

Journal Article · Sun May 15 04:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.053610· OSTI ID:20717795

Nilsen, J K ^[1]; Mur-Petit, J; Guilleumas, M; Polls, A ^[2]; Hjorth-Jensen, M ^[1]

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1. Department of Physics, University of Oslo, N-0316 Oslo (Norway)
2. Departament d'Estructura i Constituents de la Materia, Universitat de Barcelona, E-08028 Barcelona (Spain)

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.

• OSTI ID: 20717795
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 71; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
AXIAL SYMMETRY
BOSE-EINSTEIN CONDENSATION
COMPARATIVE EVALUATIONS
EXCITED STATES
GROUND STATES
MONTE CARLO METHOD
TRAPS
VARIATIONAL METHODS
VORTICES
WAVE EQUATIONS