Spin-Domain Formation in Antiferromagnetic Condensates

Details Spin-Domain Formation in Antiferromagnetic Condensates Spin-Domain Formation in Antiferromagnetic Condensates

2008-08-13

arxiv.org/abs/0808.1781v1

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevA.78.023632

Antiferromagnetic condensates are generally believed not to display modulational instability and subsequent spin-domain formation. Here we demonstrate that in he presence of a homogeneous magnetic field antiferromagnetic spin-1 Bose-Einstein condensates can undergo spatial modulational instability followed by the subsequent generation of spin domains. Employing numerical simulations for realistic conditions, we show how this novel effect can be observed in sodium condensates confined in an optical trap. Finally, we link this instability and spin-domain formation with stationary modes of the condensate.

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