Formation of fundamental structures in Bose-Einstein Condensates

Preprint

12 November 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9711111

Abstract

The meanfield interaction in a Bose condensate provides a nonlinearity which can allow stable structures to exist in the meanfield wavefunction. We discuss a number of examples where condensates, modelled by the one dimensional Gross Pitaevskii equation, can produce gray solitons and we consider in detail the case of two identical condensates colliding in a harmonic trap. Solitons are shown to form from dark interference fringes when the soliton structure, constrained in a defined manner, has lower energy than the interference fringe and an analytic expression is given for this condition.

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All Related Versions

Version 1, 1997-11-12, ArXiv
Published version: Journal of Physics B: Atomic, Molecular and Optical Physics, 31 (8), L329.

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