Spectral Flow and Quantum Theory of Dissipation in the Vortex Core of BCS superconductors

Details Spectral Flow and Quantum Theory of Dissipation in the Vortex Core of BCS superconductors Spectral Flow and Quantum Theory of Dissipation in the Vortex Core of BCS superconductors

1998-06-20

arxiv.org/abs/cond-mat/9806248v2

Physics

Condensed Matter

Superconductivity

4 pages, 5 figures. Some grammatical changes were made and new references were added

Scientific paper

10.1143/JPSJ.67.3372

The dissipation process in two dimensional BCS superconductor due to the quasiparticles in the core of moving vortex is studied from a quantum mechanical point of view, especially paying attention to the spectral flow of the bound state energies in the vortex core. In order to clarify the nature of the spectral flow, we performed a numerical study of a finite system and, by extending the analysis to include the effect of impurities, we discuss the quantum mechanical origin of the dissipation in the vortex core.

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