Negative conductance in driven Josephson junctions
Superconductivity
2008-05-29 v1 Statistical Mechanics
Abstract
We investigate an optimal regime of negative-valued conductance, emerging in a resistively and capacitively shunted Josephson junction, which is driven simultaneously by both, a time-periodic (ac) and a constant (dc) current. We analyze the current-voltage characteristics in the regime of absolute negative conductance. We additionally explore the stability of the negative response with respect to the ac-current frequency.
Cite
@article{arxiv.0803.2776,
title = {Negative conductance in driven Josephson junctions},
author = {Marcin Kostur and Lukasz Machura and Jerzy Luczka and Peter Talkner and Peter Hanggi},
journal= {arXiv preprint arXiv:0803.2776},
year = {2008}
}
Comments
10 pages, 4 figures, Presented at the 20th Marian Smoluchowski Symposium on Statistical Physics, Krakow, September 22-27, 2007; Acta Phys. Pol. B 2008 (in press)