Universal First-Passage-Time Distribution of Non-Gaussian Currents

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Max Planck Institute
  • Russian Academy of Sciences
  • Keio University
  • Abdus Salam International Centre for Theoretical Physics

Kuvaus

We investigate the fluctuations of the time elapsed until the electric charge transferred through a conductor reaches a given threshold value. For this purpose, we measure the distribution of the first-passage times for the net number of electrons transferred between two metallic islands in the Coulomb blockade regime. Our experimental results are in excellent agreement with numerical calculations based on a recent theory describing the exact first-passage-time distributions for any nonequilibrium stationary Markov process. We also derive a simple analytical approximation for the first-passage-time distribution, which takes into account the non-Gaussian statistics of the electron transport, and show that it describes the experimental distributions with high accuracy. This universal approximation describes a wide class of stochastic processes, and can be used beyond the context of mesoscopic charge transport. In addition, we verify experimentally a fluctuation relation between the first-passage-time distributions for positive and negative thresholds.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli230602
Sivut1-6
Sivumäärä6
JulkaisuPhysical Review Letters
Vuosikerta122
Numero23
TilaJulkaistu - 13 kesäkuuta 2019
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Lataa tilasto

Ei tietoja saatavilla

ID: 35182152