Observation of shot-noise-induced asymmetry in the Coulomb blockaded   Josephson junction
  We have investigated the influence of shot noise on the IV-curves of a single mesoscopic Josephson junction. We observe a linear enhancement of zero-bias conductance of the Josephson junction with increasing shot noise power. Moreover, the IV-curves become increasingly asymmetric. Our analysis on the asymmetry shows that the Coulomb blockade of Cooper pairs is strongly influenced by the non-Gaussian character of the shot noise. 
R. K. Lindell, J. Delahaye, M. A. Sillanpaa, T. T. Heikkila, E. B.   Sonin and P. J. Hakonen