Quantum dynamics of atomic bright solitons under splitting and recollision, and implications for interferometry

Martin, A.D. and Ruostekoski, J. (2012) Quantum dynamics of atomic bright solitons under splitting and recollision, and implications for interferometry. New Journal of Physics, 14. ISSN 1367-2630

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Abstract

We numerically study the classical and quantum dynamics of an atomic bright soliton in a highly elongated one dimensional harmonic trap with a Gaussian barrier. In the regime of the recent experiment by Dyke et al the system realizes a coherent nonlinear soliton beam-splitter and interferometer whose accuracy we analyze. In the case of tighter radial trap confinement and enhanced quantum fluctuations, a split soliton can represent a spin-squeezed, or alternatively, a fragmented condensate with reduced phase coherence that can be measured by interfering the split soliton by the barrier. We also find large quantum mechanical uncertainties in the soliton’s position and momentum due to nonlinear interaction with the barrier.

Item Type:
Journal Article
Journal or Publication Title:
New Journal of Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
123708
Deposited By:
Deposited On:
26 Feb 2018 09:28
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2020 07:43