6533b7ddfe1ef96bd127552c

RESEARCH PRODUCT

Shot noise for resonant Cooper pair tunneling

Rosario FazioMahn Soo ChoiFrancesco Plastina

subject

PhysicsSuperconductivityCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsStrongly Correlated Electrons (cond-mat.str-el)media_common.quotation_subjectQuantum noiseShot noiseGeneral Physics and AstronomyFOS: Physical sciencesCondensed Matter::Mesoscopic Systems and Quantum Hall EffectAsymmetry530Condensed Matter - Strongly Correlated ElectronsQuantum mechanicsCondensed Matter::SuperconductivityMesoscale and Nanoscale Physics (cond-mat.mes-hall)QuasiparticleCoulombCooper pairQuantum tunnellingmedia_common

description

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. Due to 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.

https://dx.doi.org/10.48550/arxiv.cond-mat/0102341