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

Kazuya Fujimoto and Makoto Tsubota
Phys. Rev. A 90, 013629 – Published 30 July 2014

Abstract

Spin-superflow turbulence (SST) in spin-1 ferromagnetic spinor Bose-Einstein condensates is theoretically and numerically studied by using the spin-1 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 can appear in spectra of the superflow kinetic and the spin-dependent interaction energies, respectively. Our numerical calculation of the GP equations with a phenomenological small-scale energy dissipation confirms SST with the coexistence of disturbed spin and superfluid velocity field with two power laws.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 2 January 2014
  • Revised 26 May 2014

DOI:https://doi.org/10.1103/PhysRevA.90.013629

©2014 American Physical Society

Authors & Affiliations

Kazuya Fujimoto1 and Makoto Tsubota1,2

  • 1Department of Physics, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
  • 2The OCU Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 90, Iss. 1 — July 2014

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×