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arXiv · 0704.1995

Coherent dynamics of domain formation in the Bose Ferromagnet

Qiang Gu·Haibo Qiu
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Abstract

We present a theory to describe domain formation observed very recently in a quenched Rb-87 gas, a typical ferromagnetic spinor Bose system. An overlap factor is introduced to characterize the symmetry breaking of M_F=\pm 1 components for the F=1 ferromagnetic condensate. We demonstrate that the domain formation is a co-effect of the quantum coherence and the thermal relaxation. A thermally enhanced quantum-oscillation is observed during the dynamical process of the domain formation. And the spatial separation of domains leads to significant decay of the M_F=0 component fraction in an initial M_F=0 condensate.

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Qiang Gu, Haibo Qiu. 2007-05-19. Coherent dynamics of domain formation in the Bose Ferromagnet. https://doi.org/10.1103/physrevlett.98.200401

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