• Corpus ID: 16865206

Numerical evidence of drift term in two-dimensional point vortex system at negative absolute temperature

@article{Yatsuyanagi2016NumericalEO,
  title={Numerical evidence of drift term in two-dimensional point vortex system at negative absolute temperature},
  author={Yuichi Yatsuyanagi and Tadatsugu Hatori},
  journal={arXiv: Fluid Dynamics},
  year={2016}
}
The drift term appearing in an anaylitically obtained kinetic equation for a point vortex system is evidenced numerically. It is revealed that the local temperature in a region where the vortices are frequently transported by the diffusion and the drift terms characterizes system temperature and its sign is definitely negative. Simulation results clearly show a ransport process of the vortices by the diffusion term (outside the clumps) and the drift term (inside the clumps), which gives a key… 

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