Vortex drag in the quantum Hall effect

A new model of momentum and electric field transfer between two adjacent 2D electron systems in the quantum Hall effect is proposed. The drag effect is due to momentum transfer from the vortex system of one layer to the vortex system of another layer. The remarkable result of this approach is a periodic change of sign of the dragged electric field as a function of the difference between the layer filling factors. Pis’ma Zh. éksp. Teor. Fiz. 67, No. 4, 276–279 (25 February 1998) Published in English in the original Russian journal. Edited by Steve Torstveit.