Distribution of current fluctuations in a bistable conductor

Abstract

We measure the full distribution of current fluctuations in a single-electron transistor with a controllable bistability. The conductance switches randomly between two levels due to the tunneling of single electrons in a separate single-electron box. The electrical fluctuations are detected over a wide range of time scales and excellent agreement with theoretical predictions is found. For long integration times, the distribution of the time-averaged current obeys the large-deviation principle. We formulate and verify a fluctuation relation for the bistable region of the current distribution.

5+4 pages, 4 figures, final version

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• Thermal rectification with interacting electronic channels: Exploiting degeneracy, quantum superpositions and interference
• First-passage times in renewal and nonrenewal systems
• Extreme reductions of entropy in an electronic double dot
• Rectifying full-counting statistics in a spin Seebeck engine
• Nonrenewal statistics in transport through quantum dots
• Correlation-induced refrigeration with superconducting single-electron transistors
• Waiting time distribution revealing the internal spin dynamics in a double quantum dot
• Non-Gaussian Current Fluctuations in a Short Diffusive Conductor
• Determining the parameters of a random telegraph signal by digital low pass filtering
• Time-reversal symmetric Crooks and Gallavotti-Cohen fluctuation relations in driven classical Markovian systems
• Finite-frequency noise, Fano factor, $\Delta T$-noise and cross-correlations in double quantum dots
• Revealing the internal spin dynamics in a double quantum dot by periodic voltage modulation