title: Shot noise for resonant Cooper pair tunneling.
abstract: We study intrinsic noise of current in a superconducting single-electron transistor, taking into account both coherence effects and Coulomb interaction near a Cooper pair resonance. Because of this interplay, the statistics of tunneling events deviates from the Poisson distribution and, more important, it shows even-odd asymmetry in the transmitted charge. The zero-frequency noise is suppressed significantly when the quasiparticle tunneling rates are comparable to the coherent oscillation frequency of Cooper pairs.
authors.affiliation: Department of Physics and Astronomy, University of Basel, Klingelberstrasse 82, 4056 Basel, Switzerland.
authors.forename: M S
authors.initials: MS
authors.lastname: Choi
authors.forename: F
authors.initials: F
authors.lastname: Plastina
authors.forename: R
authors.initials: R
authors.lastname: Fazio