Local current injection into mesoscopic superconductors for the manipulation of quantum states
Superconductivity
2015-05-14 v1 Mesoscale and Nanoscale Physics
Abstract
We perform strategic current injection in a small mesoscopic superconductor and control the (non)equilibrium quantum states in an applied homogeneous magnetic field. In doing so, we realize a current-driven splitting of multi-quanta vortices, current-induced transitions between states with different angular momenta, and current-controlled switching between otherwise degenerate quantum states. These fundamental phenomena form the basis for discussed electronic and logic applications, and are confirmed in both theoretical simulations and multiple-small-tunnel-junction transport measurements.
Keywords
Cite
@article{arxiv.0911.1199,
title = {Local current injection into mesoscopic superconductors for the manipulation of quantum states},
author = {M. V. Milošević and A. Kanda and S. Hatsumi and F. M. Peeters and Y. Ootuka},
journal= {arXiv preprint arXiv:0911.1199},
year = {2015}
}
Comments
To appear in Physical Review Letters