Journal
PHYSICA B-CONDENSED MATTER
Volume 280, Issue 1-4, Pages 117-121Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0921-4526(99)01509-4
Keywords
magnus force; spectral flow; vortex dynamics
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I review the semi-classical picture of how states bound in the core of a vortex in an S-wave superconductor respond to relative motion between the vortex and the condensate. I show how the momentum absorbed as a result of the Magnus force acting on the core leads to a change in the distribution of occupied states (spectral flow). In the simplest relaxation time approximation this modified distribution gives rise to the Kopnin-Kravtsov force on the vortex. (C) 2000 Elsevier Science B.V. All rights reserved.
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