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首页> 外文期刊>Journal of Physics: Conference Series >Scattering of a two-soliton molecule by Gaussian potential barriers and wells
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Scattering of a two-soliton molecule by Gaussian potential barriers and wells

机译:高斯势垒和阱对二孤子分子的散射

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摘要

Twoanti-phasebrightsolitonsinadipolarBose-Einsteincondensatecanformstableboundstates,knownassolitonmolecules.Inthispaperwestudythescatteringofatwo-solitonmoleculebyexternalpotential,usingthesimplestandanalyticallytractableGaussianpotentialbarriersandwells,inonespatialdimension.TheoreticalmodelisbasedonthevariationalapproximationforthenonlocalGross-Pitaevskiiequation(GPE).Atsufficientlylowvelocityoftheincidentmoleculeweobservequantumreflectionfromthepotentialwell.PredictionsofthemathematicalmodelarecomparedwithnumericalsimulationsoftheGPE,andgoodqualitativeagreementbetweenthemisdemonstrated...
机译:Twoanti-phasebrightsolitonsinadipolarBose-Einsteincondensatecanformstableboundstates,knownassolitonmolecules.Inthispaperwestudythescatteringofatwo-solitonmoleculebyexternalpotential,usingthesimplestandanalyticallytractableGaussianpotentialbarriersandwells,inonespatialdimension.TheoreticalmodelisbasedonthevariationalapproximationforthenonlocalGross-Pitaevskiiequation(GPE).Atsufficientlylowvelocityoftheincidentmoleculeweobservequantumreflectionfromthepotentialwell.PredictionsofthemathematicalmodelarecomparedwithnumericalsimulationsoftheGPE,andgoodqualitativeagreementbetweenthemisdemonstrated ...

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