Entanglement of electrons field-emitted from a superconductor

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


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
Issue number18
Publication statusPublished - 2009 May 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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