Guidance of matter waves through Y-junctions

P. G. Kevrekidis, D. J. Frantzeskakis, G. Theocharis, I. G. Kevrekidis

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Abstract

We discuss the concept of Y-junctions for matter waves and investigate their guidance properties, focusing on the case of Bose-Einstein condensates with attractive interatomic interactions. We examine both discrete and continuous models, respectively relevant to Y-junctions formed in optical lattices (OL) and magnetic traps (MT). We find a strong dependence of the transmitted fraction of the condensate (in the OL case) on the angle with a maximum (per arm) of approximately 30%. In the MT case, we show that the presence of the junction's wedge can prevent collapse of the original condensate.

Original languageEnglish (US)
Pages (from-to)513-522
Number of pages10
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume317
Issue number5-6
DOIs
StatePublished - Oct 27 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Kevrekidis, P. G., Frantzeskakis, D. J., Theocharis, G., & Kevrekidis, I. G. (2003). Guidance of matter waves through Y-junctions. Physics Letters, Section A: General, Atomic and Solid State Physics, 317(5-6), 513-522. https://doi.org/10.1016/j.physleta.2003.08.069