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Fingerprints of Majorana fermions in current-correlations measurements from a superconducting tunnel microscope

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 نشر من قبل Mathias Albert
 تاريخ النشر 2017
  مجال البحث فيزياء
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We compute various current correlation functions of electrons flowing from a topological nanowire to the tip of a superconducting scanning tunnel microscope and identify fingerprints of a Majorana bound state. In particular, the spin resolved cross-correlations are shown to display a clear distinction between the presence of a such an exotic state (negative correlations) and an Andreev bound state (positive correlations). Similarity and differences with measurements with a normal tunnel microscope are also discussed, like the robustness to finite temperature for instance.



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