Probing Cooper pairs with Franson interferometry

Vittorio Giovannetti, Kazuya Yuasa

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    A setup based on the Franson optical interferometer is analyzed, which allows us to detect the coherence properties of Cooper pairs emerging via tunneling from a superconductor in contact with two one-dimensional channels. By tuning the system parameters we show that both the internal coherence of the emitted Cooper pairs, which is proportional to Pippard's length, and the de Broglie wavelength of their center-of-mass motion can be measured via current-current correlation measurements.

    Original languageEnglish
    Article number115429
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume86
    Issue number11
    DOIs
    Publication statusPublished - 2012 Sep 19

    Fingerprint

    Interferometry
    interferometry
    de Broglie wavelengths
    Interferometers
    Superconducting materials
    center of mass
    emerging
    interferometers
    Tuning
    tuning
    Wavelength

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Probing Cooper pairs with Franson interferometry. / Giovannetti, Vittorio; Yuasa, Kazuya.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 86, No. 11, 115429, 19.09.2012.

    Research output: Contribution to journalArticle

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