### 抜粋

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.

元の言語 | English |
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記事番号 | 230602 |

ジャーナル | Physical review letters |

巻 | 122 |

発行部数 | 23 |

DOI | |

出版物ステータス | Published - 2019 6 13 |

### ASJC Scopus subject areas

- Physics and Astronomy(all)

## フィンガープリント Universal First-Passage-Time Distribution of Non-Gaussian Currents' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

*Physical review letters*,

*122*(23), [230602]. https://doi.org/10.1103/PhysRevLett.122.230602