Abstract
The translational velocity of a vortex with circulation in an imperfect Bose gas is calculated by considering the time dependence of the condensate wave function corresponding to a given initial configuration of vortices. Each vortex in a system of rectilinear vortices is shown to move with the local fluid velocity at its core; a vortex ring of radius is shown to move with velocity , where is a length the order of the core size. Both results agree with the predictions of classical hydrodynamics.
- Received 27 June 1966
DOI:https://doi.org/10.1103/PhysRev.151.100
©1966 American Physical Society