Quantum Resonances of Weakly Linked, Mesoscopic, Superconducting Dots
arXiv:cond-mat/9403019
Abstract
We examine quantum properties of mesoscopic, Josephson coupled superconducting dots, in the limit that charging effects and quantization of energy levels within the dots are negligible, but quasi-particle transmission into the weak link is not. We demonstrate that quasi-particle resonances lead to current-phase relations, which deviate markedly from those of weak links connecting macroscopic superconductors. Results for the steady state dc Josephson current of two coupled dots are presented.
Tex, 3 figures available on request to [email protected] (Andy Martin)