Universal First-Passage-Time Distribution of Non-Gaussian Currents
Loading...
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2019-06-13
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
1-6
Series
Physical Review Letters, Volume 122, issue 23
Abstract
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.Description
| openaire: EC/H2020/742559/EU//SQH
Keywords
Other note
Citation
Singh, S, Menczel, P, Golubev, D S, Khaymovich, I M, Peltonen, J T, Flindt, C, Saito, K, Roldán, É & Pekola, J P 2019, ' Universal First-Passage-Time Distribution of Non-Gaussian Currents ', Physical Review Letters, vol. 122, no. 23, 230602, pp. 1-6 . https://doi.org/10.1103/PhysRevLett.122.230602