Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8164611 | Physica C: Superconductivity and its Applications | 2014 | 4 Pages |
Abstract
We study the coherent dynamics of pairing in a nanoscale superconductor, that is intrinsically multiband, after an external perturbation in the non-adiabatic regime. The description of the dynamics of the pairing order is within the density-matrix approach based on the BCS model and the Bogoliubov-de Gennes equations. We find that for certain resonant wire widths the superconducting order parameter exhibits two oscillatory frequencies which are determined by the long-time asymptotic values of the subgaps. This in turn leads to a pronounced beating phenomenon.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
M.D. Croitoru, M. Zachmann, A. Vagov, V.M. Axt, A.A. Shanenko, P. Kettmann, T. Papenkort, T. Kuhn,