Physics – Condensed Matter – Quantum Gases
Scientific paper
2011-12-12
Phys. Rev. A 85, 033642 (2012)
Physics
Condensed Matter
Quantum Gases
15pages, 16figures
Scientific paper
We theoretically study counterflow instability and turbulence in a spin-1 spinor Bose--Einstein condensate by the Gross--Pitaevskii equation and the Bogoliubov--de Gennes equation. Our study considers (i) the dynamics induced by the counterflow of two components with different magnetic quantum numbers, which leads to turbulence with spin degrees of freedom, and (ii) the properties of the turbulence. For (i), the behavior of the condensate induced by the counterflow strongly depends on whether the spin-dependent interaction is ferromagnetic or antiferromagnetic, leading to different behaviors for the dispersion relation and the spin density vector, $etc$. For (ii), we numerically calculate the spectrum of the spin-dependent interaction energy, which also depends on the spin-dependent interaction. The spectrum of the spin-dependent interaction energy in the ferromagnetic case exhibits a -7/3 power law, whereas that in the antiferromagnetic case does not. The -7/3 power law can be explained by scaling analysis.
Fujimoto Kazuya
Tsubota Makoto
No associations
LandOfFree
Counterflow instability and turbulence in a spin-1 spinor Bose--Einstein condensate does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Counterflow instability and turbulence in a spin-1 spinor Bose--Einstein condensate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Counterflow instability and turbulence in a spin-1 spinor Bose--Einstein condensate will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-708361