Magnetic field induced dynamical instabilities in an anti-ferromagnetic spin-1 Bose-Einstein condensate

Abstract

We theoretically investigate four types of dynamical instability, in particular the periodic and oscillatory type $I_O$, in an anti-ferromagnetic spin-1 Bose-Einstein condensate in a nonzero magnetic field, by employing the coupled-mode theory and numerical method. This is in sharp contrast to the dynamical stability of the same system in zero field. Remarkably, a pattern transition from a periodic dynamical instability $I_O$ to a uniform one $II{I}_O$ occurs at a critical magnetic field. All the four types of dynamical instability and the pattern transition are ready to be detected in ${}^{23}$Na condensates within the availability of the current experimental techniques.

arXiv comment6 pages, 4 eps figures. To appear in Phys. Rev. A

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Cited by in corpus (5)

• Foundations and Applications of Quantum Kinetic Theory
• Preserving coherent spin and squeezed spin states of a spin-1 Bose-Einstein condensate with rotary echoes
• Spin-1 Bose Hubbard model with nearest neighbour extended interaction
• Dynamical Zeeman resonance in spin-orbit-coupled spin-1 Bose gases
• Double unstable avoided crossings and complex domain patterns formation in spin-orbit coupled spin-1 condensates