Distribution of current fluctuations in a bistable conductor

S. Singh, Joonas Peltonen, I. M. Khaymovich, J. V. Koski, C. Flindt, J. P. Pekola

Research output: Contribution to journal › Article › Scientific › peer-review

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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.

Original languageEnglish
Article number241407
Pages (from-to)1-5
JournalPhysical Review B
Volume94
Issue number24
DOIs
Publication statusPublished - 27 Dec 2016
MoE publication typeA1 Journal article-refereed

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    • Centre of Excellence in Low Temperature Quantum Phenomena and Devices

      Golubev, D. (Project Member), Volovik, G. (Project Member), Westström, A. (Project Member), Tuoriniemi, J. (Project Member), Najafi Jabdaraghi, R. (Project Member), Pekola, J. (Principal investigator), Pöyhönen, K. (Project Member), Singh, S. (Project Member), Feshchenko, A. (Project Member), Kauppila, V. (Project Member), Senior, J. (Project Member), Viisanen, K. (Project Member), Wang, L. (Project Member), Khan, R. (Project Member), Padurariu, C. (Project Member), Lähteenmäki, P. (Project Member) & Ronzani, A. (Project Member)

      01/01/2015 → 31/12/2017

      Project: Academy of Finland: Other research funding

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