We consider the microwave dynamics and transport properties of a voltage-biased single-Cooper-pair transistor. The dynamics is shown to be strongly affected by interference between multiple microwave-induced inter-level transitions. As a result the magnitude and direction of the dc Josephson current are extremely sensitive to small variations of the bias voltage and to changes in the frequency of the microwave field.
@article{arxiv.cond-mat/0307568,
title = {Resonant microwave properties of a voltage-biased single-Cooper-pair transistor},
author = {L. Y. Gorelik and S. I. Kulinich and R. I. Shekhter and M. Jonson},
journal= {arXiv preprint arXiv:cond-mat/0307568},
year = {2009}
}