Resonant Cooper-Pair Tunneling: Counting Statistics and Frequency-Dependent Current Noise
Abstract
Description
We discuss the counting statistics and current noise associated with the double Josephson quasiparticle resonance point in a superconducting single electron transistor. The counting statistics are in general phase-dependent, despite the fact that the average current has no dependence on phase. Focusing on parameter regimes where the counting statistics have no phase-dependence, we use a general relation first derived by MacDonald in 1948 to obtain the full frequency-dependent shot noise directly from the counting statistics, without any further approximations. We comment on problems posed by the phase-dependence of the counting statistics for the finite-frequency noise.
13 pages, 2 figures; to appear in the proceedings of the NATO ASI "New Directions in Mesoscopic Physics", Erice, 2002
13 pages, 2 figures; to appear in the proceedings of the NATO ASI "New Directions in Mesoscopic Physics", Erice, 2002