Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling

@article{Hassel2004ControlOC,
  title={Control of Coulomb blockade in a mesoscopic Josephson junction using single electron tunneling},
  author={Juha Hassel and J Delahaye and Heikki Seppa and Pertti J. Hakonen},
  journal={Journal of Applied Physics},
  year={2004},
  volume={95},
  pages={8059-8062}
}
We study a circuit where a mesoscopic Josephson junction (JJ) is embedded in an environment consisting of a large bias resistor and a normal-insulator-superconductor (NIS) junction. The effective Coulomb blockade of the JJ can be controlled by the tunneling current through the NIS junction leading to transistor-like characteristics. We show using phase correlation theory and numerical simulations that substantial current gain with low current noise (in≲1 fA/Hz) and noise temperature (≲0.1 K… 
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