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arXiv · 1401.0599

Spin-superflow turbulence in spin-1 ferromagnetic spinor Bose-Einstein condensates

Kazuya Fujimoto·Makoto Tsubota
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Abstract

Spin-superflow turbulence (SST) in spin-1 ferromagnetic spinor Bose-Einstein condensates is theoretically and numerically studied by using the spinor Gross-Pitaevskii (GP) equations. SST is turbulence in which the disturbed spin and superfluid velocity fields are coupled. Applying the Kolmogorov-type dimensional scaling analysis to the hydrodynamic equations of spin and velocity fields, we theoretically find that the -5/3 and -7/3 power laws appear in spectra of the superflow kinetic and the spin-dependent interaction energy, respectively. Our numerical calculation of the GP equations confirms SST with the coexistence of disturbed spin and superfluid velocity field with two power laws.

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Kazuya Fujimoto, Makoto Tsubota. 2014-07-31. Spin-superflow turbulence in spin-1 ferromagnetic spinor Bose-Einstein condensates. https://doi.org/10.1103/physreva.90.013629

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