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arXiv · 1605.02864

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

Zhengguo Pu·Jun Zhang·Su Yi·Dajun Wang·Wenxian Zhang
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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 $III_O$ 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.

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Zhengguo Pu, Jun Zhang, Su Yi, Dajun Wang, Wenxian Zhang. 2016-05-10. Magnetic field induced dynamical instabilities in an anti-ferromagnetic spin-1 Bose-Einstein condensate. https://doi.org/10.1103/physreva.93.053628

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