Vortex dynamics and mutual friction in superconductors and Fermi superfluids

Details Vortex dynamics and mutual friction in superconductors and Fermi superfluids Vortex dynamics and mutual friction in superconductors and Fermi superfluids

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002rpph...65.1633k&link_type=abstract

Reports on Progress in Physics, Volume 65, Issue 11, pp. 1633-1678 (2002).

Physics

26

Scientific paper

Excitations in vortex cores in superconductors and other Fermi superfluids are single-particle excitations with a peculiar energy spectrum. These excitations are responsible for many important thermodynamic properties such as specific heat, London penetration length, etc. They also determine the dynamic characteristics of superconductors and superfluids through their interaction with vortices. Flux flow resistance, the Hall effect in type II superconductors and the mutual friction in superfluids are the most important phenomena which strongly depend on vortex core excitations. These phenomena determine the electromagnetic responses of type II superconductors and the hydrodynamic behaviour of superfluids and are of great significance for practical applications of superconducting devices and for understanding the most fundamental properties of correlated electrons and other Fermi particles. In this review we consider the dynamic properties of superconductors and superfluids and outline the basic ideas and results on the vortex dynamics in clean superfluid Fermi systems. The forces acting on moving vortices are discussed including the problem of the transverse force which was a matter of confusion for quite some time. We formulate the equations of the vortex dynamics, which include all the forces and the inertial term associated with excitations bound to the moving vortex.

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