Stability of nonstationary states of spin-2 Bose-Einstein condensates

Details Stability of nonstationary states of spin-2 Bose-Einstein condensates Stability of nonstationary states of spin-2 Bose-Einstein condensates

2012-02-16

arxiv.org/abs/1202.3658v1

Physics

Condensed Matter

Quantum Gases

10 pages, 4 figures

Scientific paper

The dynamical stability of nonstationary states of homogeneous spin-2 rubidium Bose-Einstein condensates is studied. The states considered are such that the spin vector remains parallel to the magnetic field throughout the time evolution, making it possible to study the stability analytically. These states are shown to be stable in the absence of an external magnetic field, but they become unstable when a finite magnetic field is introduced. It is found that the growth rate and wavelength of the instabilities can be controlled by tuning the strength of the magnetic field and the size of the condensate.

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