Modulational instability in Bose-Einstein condensates under feshbach resonance management

Z. Rapti, G. Theocharis, P. G. Kevrekidis, D. J. Frantzeskakis, B. A. Malomed

Research output: Contribution to journalConference articlepeer-review


We investigate the modulational instability of nonlinear Schrödinger equations with periodic variation of their coefficients. In particular, we focus on the case of the recently proposed, experimentally realizable protocol of Feshbach Resonance Management for Bose-Einstein condensates. We derive the corresponding linear stability equation analytically and we show that it can be reduced to a Kronig-Penney model, which allows the determination of the windows of instability. The results are tested numerically in the absence, as well as in the presence of the magnetic trapping potential.

Original languageEnglish (US)
Pages (from-to)27-31
Number of pages5
JournalPhysica Scripta T
StatePublished - 2004
Externally publishedYes
EventInternational Topical Conference on Plasma Physics: Complex Plasmas in the New Millennium - Santorini Island, Greece
Duration: Sep 8 2003Sep 12 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics
  • General Physics and Astronomy


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