Entanglement of electrons field-emitted from a superconductor

Kazuya Yuasa, Paolo Facchi, Rosario Fazio, Hiromichi Nakazato, Ichiro Ohba, Saverio Pascazio, Shuichi Tasaki

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    Under appropriate circumstances the electrons emitted from a superconducting tip can be entangled. We analyze these nonlocal correlations by studying the coincidences of the field-emitted electrons and show that electrons emitted in opposite directions violate Bell's inequality. We scrutinize the interplay between the bosonic nature of Cooper pairs and the fermionic nature of electrons. We further discuss the feasibility of our analysis in the light of present experimental capabilities.

    Original languageEnglish
    Article number180503
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume79
    Issue number18
    DOIs
    Publication statusPublished - 2009 May 1

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    Superconducting materials
    Electrons
    electrons
    bells

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Entanglement of electrons field-emitted from a superconductor. / Yuasa, Kazuya; Facchi, Paolo; Fazio, Rosario; Nakazato, Hiromichi; Ohba, Ichiro; Pascazio, Saverio; Tasaki, Shuichi.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 79, No. 18, 180503, 01.05.2009.

    Research output: Contribution to journalArticle

    Yuasa, Kazuya ; Facchi, Paolo ; Fazio, Rosario ; Nakazato, Hiromichi ; Ohba, Ichiro ; Pascazio, Saverio ; Tasaki, Shuichi. / Entanglement of electrons field-emitted from a superconductor. In: Physical Review B - Condensed Matter and Materials Physics. 2009 ; Vol. 79, No. 18.
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