Spin-superflow turbulence in spin-1 ferromagnetic spinor Bose-Einstein condensates
arXiv:1401.0599 · doi:10.1103/PhysRevA.90.013629
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.
7 pages, 5 figures
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- Anomalous phase ordering of a quenched ferromagnetic superfluid
- Chaos-assisted Turbulence in Spinor Bose-Einstein Condensates
- A quantum storm in a teacup
- Hydrodynamic model of skyrmions and vorticities in the spin-1 Bose-Einstein condensate in ferromagnetic phase at finite temperatures