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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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.
|Subjects:||Q Science > QA Mathematics
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > School of Mathematics > Applied Mathematics
|Date Deposited:||19 Apr 2010 08:23|
|Last Modified:||03 Jan 2013 17:41|
|Contributors:||Martin, A.D. (Author)
Ruostekoski, J. (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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