Electron correlation effects in superconducting nanowires in and out of equilibrium
Strongly Correlated Electrons
2021-08-17 v1 Mesoscale and Nanoscale Physics
Superconductivity
Abstract
One-dimensional nanowires with strong spin-orbit coupling and proximity-induced superconductivity are predicted to exhibit topological superconductivity with condensed-matter analogues to Majorana fermions. Here, the nonequilibrium Green's function approach with the generalized Kadanoff-Baym ansatz is employed to study the electron-correlation effects and their role in the topological superconducting phase in and out of equilibrium. Electron-correlation effects are found to affect the transient signatures regarding the zero-energy Majorana states, when the superconducting nanowire is subjected to external perturbations such as magnetic-field quenching, laser-pulse excitation, and coupling to biased normal-metal leads.
Keywords
Cite
@article{arxiv.2105.06193,
title = {Electron correlation effects in superconducting nanowires in and out of equilibrium},
author = {Riku Tuovinen},
journal= {arXiv preprint arXiv:2105.06193},
year = {2021}
}
Comments
12 pages, 6 figures