Stability and decay rates of nonisotropic attractive Bose-Einstein condensates

C. Huepe, L. S. Tuckerman, S. Métens, M. E. Brachet

Research output: Contribution to journalArticlepeer-review


Nonisotropic attractive Bose-Einstein condensates are investigated numerically with Newton and inverse Arnoldi methods. The stationary solutions of the Gross-Pitaevskii equation and their linear stability are computed. Bifurcation diagrams are calculated and used to find the condensate decay rates corresponding to macroscopic quantum tunneling, two-three-body inelastic collisions, and thermally induced collapse. Isotropic and nonisotropic condensates are compared. The effect of anisotropy on the bifurcation diagram and the decay rates is discussed. Spontaneous isotropization of the condensates is found to occur. The influence of isotropization on the decay rates is characterized near the critical point.

Original languageEnglish (US)
Pages (from-to)13
Number of pages1
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
StatePublished - 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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