Fast and accurate single-island charge pump: Implementation of a Cooper pair pump

Antti Niskanen, Jukka Pekola, Heikki Seppä

    Research output: Contribution to journalArticleScientificpeer-review

    54 Citations (Scopus)

    Abstract

    We introduce a Cooper pair “sluice” for the implementation of a frequency-locked current source. The device consists of two mesoscopic SQUIDs and of a single superconducting island with a gate. We demonstrate theoretically that it is possible to obtain a current as high as 0.1 nA at better than ppm accuracy via periodically modulating both the gate charge and the effective Josephson coupling. We find that the device is tolerant against background charge noise and operates well even in a dissipative environment. The effect of the imperfect suppression of the Josephson coupling and the finite operating frequency are also investigated.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume91
    Issue number17
    DOIs
    Publication statusPublished - 2003
    MoE publication typeA1 Journal article-refereed

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    Keywords

    • Cooper pair pumping
    • Cooper pairs
    • SQUID
    • Josephson effect
    • Josephson junction

    Cite this

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    title = "Fast and accurate single-island charge pump: Implementation of a Cooper pair pump",
    abstract = "We introduce a Cooper pair “sluice” for the implementation of a frequency-locked current source. The device consists of two mesoscopic SQUIDs and of a single superconducting island with a gate. We demonstrate theoretically that it is possible to obtain a current as high as 0.1 nA at better than ppm accuracy via periodically modulating both the gate charge and the effective Josephson coupling. We find that the device is tolerant against background charge noise and operates well even in a dissipative environment. The effect of the imperfect suppression of the Josephson coupling and the finite operating frequency are also investigated.",
    keywords = "Cooper pair pumping, Cooper pairs, SQUID, Josephson effect, Josephson junction",
    author = "Antti Niskanen and Jukka Pekola and Heikki Sepp{\"a}",
    year = "2003",
    doi = "10.1103/PhysRevLett.91.177003",
    language = "English",
    volume = "91",
    journal = "Physical Review Letters",
    issn = "0031-9007",
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    Fast and accurate single-island charge pump : Implementation of a Cooper pair pump. / Niskanen, Antti; Pekola, Jukka; Seppä, Heikki.

    In: Physical Review Letters, Vol. 91, No. 17, 2003.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Fast and accurate single-island charge pump

    T2 - Implementation of a Cooper pair pump

    AU - Niskanen, Antti

    AU - Pekola, Jukka

    AU - Seppä, Heikki

    PY - 2003

    Y1 - 2003

    N2 - We introduce a Cooper pair “sluice” for the implementation of a frequency-locked current source. The device consists of two mesoscopic SQUIDs and of a single superconducting island with a gate. We demonstrate theoretically that it is possible to obtain a current as high as 0.1 nA at better than ppm accuracy via periodically modulating both the gate charge and the effective Josephson coupling. We find that the device is tolerant against background charge noise and operates well even in a dissipative environment. The effect of the imperfect suppression of the Josephson coupling and the finite operating frequency are also investigated.

    AB - We introduce a Cooper pair “sluice” for the implementation of a frequency-locked current source. The device consists of two mesoscopic SQUIDs and of a single superconducting island with a gate. We demonstrate theoretically that it is possible to obtain a current as high as 0.1 nA at better than ppm accuracy via periodically modulating both the gate charge and the effective Josephson coupling. We find that the device is tolerant against background charge noise and operates well even in a dissipative environment. The effect of the imperfect suppression of the Josephson coupling and the finite operating frequency are also investigated.

    KW - Cooper pair pumping

    KW - Cooper pairs

    KW - SQUID

    KW - Josephson effect

    KW - Josephson junction

    U2 - 10.1103/PhysRevLett.91.177003

    DO - 10.1103/PhysRevLett.91.177003

    M3 - Article

    VL - 91

    JO - Physical Review Letters

    JF - Physical Review Letters

    SN - 0031-9007

    IS - 17

    ER -