Guidance of matter waves through Y-junctions

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

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


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
Issue number5-6
StatePublished - Oct 27 2003

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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