Collapse times of dipolar Bose-Einstein condensates

Ticknor, C.; Parker, N.G.; Melatos, A.; Cornish, S.L.; O'Dell, D.H.J.; Martin, A.M.

Abstract

We investigate the time taken for global collapse by a dipolar Bose-Einstein condensate. Two semianalytical approaches and exact numerical integration of the mean-field dynamics are considered. The semianalytical approaches are based on a Gaussian ansatz and a Thomas-Fermi solution for the shape of the condensate. The regimes of validity for these two approaches are determined, and their predictions for the collapse time revealed and compared with numerical simulations. The dipolar interactions introduce anisotropy into the collapse dynamics and predominantly lead to collapse in the plane perpendicular to the axis of polarization.

Citation

Ticknor, C., Parker, N., Melatos, A., Cornish, S., O'Dell, D., & Martin, A. (2008). Collapse times of dipolar Bose-Einstein condensates. Physical Review A, 78(6), Article 061607. https://doi.org/10.1103/physreva.78.061607

• Journal Article Type: Article
• Publication Date: Dec 1, 2008
• Deposit Date: Jan 23, 2012
• Publicly Available Date: Nov 27, 2012
• Journal: Physical Review A - Atomic, Molecular, and Optical Physics
• Print ISSN: 1050-2947
• Electronic ISSN: 1094-1622
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 78
• Issue: 6
• Article Number: 061607
• DOI: https://doi.org/10.1103/physreva.78.061607
• Public URL: https://durham-repository.worktribe.com/output/1498627