Vorticity and vortex-core states
| dc.creator | Berthod, C. | |
| dc.date | 2004-01-22 | |
| dc.date.accessioned | 2026-07-07T07:46:07Z | |
| dc.date.available | 2026-07-07T07:46:07Z | |
| dc.description | The origin of the vortex-core states in s-wave and d_{x^2-y^2}-wave superconductors is investigated by means of some selected numerical experiments. By relaxing the self-consistency condition in the Bogoliubov-de Gennes equations and tuning the order parameter in the core region, it is shown that the suppression of the superfluid density in the core is not a necessary condition for the core states to form. This excludes ``potential well'' types of interpretations for the core states. The topological defect in the phase of the order parameter, however, plays a crucial role. This observation is explained by considering the effect of the vortex supercurrent on the Bogoliubov quasiparticles, and illustrated by comparing conventional vortices with multiply-quantized vortices and vortex-antivortex pairs. The core states are also found to be extremely robust against random phase disorder. | |
| dc.description | REVTeX 4, 11 pages, 8 EPS figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0401417 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0401417 | |
| dc.identifier | Phys. Rev. B 71, 134513 (2005) | |
| dc.identifier | doi:10.1103/PhysRevB.71.134513 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/123726 | |
| dc.subject | Superconductivity | |
| dc.title | Vorticity and vortex-core states | |
| dc.type | text |