Solitonic transmission of Bose-Einstein matter waves

Patricio Leboeuf (1) , Nicolas Pavloff (1) , Subhasis Sinha (1)

1 LPTMS - Laboratoire de Physique Théorique et Modèles Statistiques

We consider a continuous atom laser propagating through a wave guide with a constriction. Two different types of transmittedstationary flow coexist. The first one coincides, at low incident current, with the non-interacting flow. As the incident flux increases, the repulsive interactions decrease the corresponding transmission coefficient. The second type only occurs for sufficiently large incident currents and has a solitonic structure.Remarkably, for any chemical potential there always exists a value of the incident flux at which the solitonic flow is perfectly transmitted.

Domaines: Autre [cond-mat.other]; Formation de Structures et Solitons [nlin.PS]

Patricio Leboeuf, Nicolas Pavloff, Subhasis Sinha. Solitonic transmission of Bose-Einstein matter waves. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2003, 68, pp.63608. ⟨hal-00000393v3⟩