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. ISSN 1367-2630

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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.

Item Type:
Journal Article
Journal or Publication Title:
New Journal of Physics
Uncontrolled Keywords:
?? general physics and astronomyphysics and astronomy(all) ??
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Deposited On:
26 Feb 2018 12:06
Last Modified:
16 Jul 2024 10:38