VORTEX PULL BY AN EXTERNAL CURRENT

In the context of a dynamical Ginzburg-Landau model it is shown numeri cally that under the influence of a homogeneous external current J the vortex drifts against the current with velocity V=-J in agreement to earlier analytical predictions. In the presence of dissipation the vor tex undergoes skew deflection at an angle 90 degrees < delta < 180 deg rees with respect to the external current. It is shown analytically an d verified numerically that the angle delta and the speed of the vorte x are linked through a simple mathematical relation. [S0163-1829(98)03 317-7].