Nonequilibrium quantum dynamics of atomic dark solitons
Martin, A.D. and Ruostekoski, J. (2010) Nonequilibrium quantum dynamics of atomic dark solitons. New Journal of Physics, 12, (055018-[20pp]) (doi:10.1088/1367-2630/12/5/055018).
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Description/Abstract
We study quantum dynamics of bosonic atoms that are excited to form a phase kink, or several kinks, by an imprinting potential in a one-dimensional trap. We calculate dissipation due to quantum and thermal fluctuations in soliton trajectories, collisions and the core structure. Single-shot runs show weak filling of a soliton core, typically deeper solitons in the case of stronger fluctuations and spreading/disappearing solitons due to collisions. We also analyze a soliton system in an optical lattice that shows especially strong fluctuation-induced phenomena.
| Item Type: | Article |
|---|---|
| ISSNs: | 1367-2630 (electronic) 1005-5018 (print) |
| Subjects: | Q Science > QA Mathematics Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Mathematics > Applied Mathematics |
| Item ID: | 145353 |
| Date Deposited: | 19 Apr 2010 08:23 |
| Last Modified: | 03 Jan 2013 17:41 |
| Contributors: | Martin, A.D. (Author) Ruostekoski, J. (Author) |
| Date: | May 2010 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/145353 |
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