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arXiv · 1504.06404

Universal coarsening dynamics of a quenched ferromagnetic spin-1 condensate

Lewis A. Williamson·P. B. Blakie
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Abstract

We demonstrate that a quasi-two-dimensional spin-1 condensate quenched to a ferromagnetic phase undergoes universal coarsening in its late time dynamics. The quench can be implemented by a sudden change in the applied magnetic field and, depending on the final value, the ferromagnetic phase has easy-axis (Ising) or easy-plane (XY) symmetry, with different dynamical critical exponents. Our results for the easy-plane phase reveal a fractal domain structure and the crucial role of polar-core spin vortices in the coarsening dynamics.

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Lewis A. Williamson, P. B. Blakie. 2016-01-14. Universal coarsening dynamics of a quenched ferromagnetic spin-1 condensate. https://doi.org/10.1103/physrevlett.116.025301

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