Calculation of the phase field of a vortex pair on the surface of a multiply connected substrate

Toshiaki Obata, Minoru Kubota
2002 Physical Review B (Condensed Matter)  
The vortex pair phase field is calculated, through a solution of the Laplace equation, for a superfluid film adsorbed on the surface of a model 3D connected porous medium. A number of different vortex-antivortex pair configurations are considered as functions of the porosity or an aspect ratio of the model porous structure. The calculated results give the energy of a pair for motion of the vortex cores around a pore or a solid rod as well as for the string configuration corresponding to a
more » ... separation of the vortex pair through the porous medium.
doi:10.1103/physrevb.66.140506 fatcat:sdrpw76foveybmhwq625y7yvu4