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Modulational instability of spinor condensates

Nicholas P. Robins·Weiping Zhang·Elena A. Ostrovskaya·Yuri S Kivshar
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Abstract

We demonstrate, analytically and numerically, that the ferromagnetic phase of the spinor Bose-Einstein condenstate may experience modulational instability of the ground state leading to a fragmentation of the spin domains. Together with other nonlinear effects in the atomic optics of ultra-cold gases (such as coherent photoassociation and four-wave mixing) this effect provides one more analogy between coherent matter waves and light waves in nonlinear optics.

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Nicholas P. Robins, Weiping Zhang, Elena A. Ostrovskaya, Yuri S Kivshar. 2001-05-31. Modulational instability of spinor condensates. https://doi.org/10.1103/physreva.64.021601

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