Suppression of collapse for matter waves with orbital angular momentum

Jasur Abdullaev, Anton S. Desyatnikov, Elena A. Ostrovskaya

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We explore the influence of the orbital angular momentum on the collapse of vortex-free elliptic clouds of Bose-Einstein condensates with a negative scattering length trapped in a radially symmetric harmonic potential. We show that the number of trapped ultracold atoms corresponding to the collapse threshold can be radically increased for such rotating nonlinear matter waves. Below the threshold the elliptic mode is stable and exhibits periodic oscillations around a stationary rotating state. The frequency of these oscillations is independent of the number of particles and is determined solely by the trapping potential.

Original languageEnglish
Article number064023
JournalJournal of Optics
Volume13
Issue number6
DOIs
Publication statusPublished - Jun 1 2011
Externally publishedYes

Keywords

  • Bse-Einstein condensate
  • collapse
  • orbital angular momentum
  • spiraling nonlinear states

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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