VietNam 2013 

IXth Rencontres du Vietnam
Quy-Nhon, August 4-10, 2013


 Nanophysics: from fundamentals to applications

(the return)


Thursday 8

› 14:40 - 15:00 (20min)
Majorana and Andreev bound states in topological wires in the proximity of superconductors
Denis Chevallier  1@  
1 : Laboratoire de physique des solides  (LPS)  -  Website
Université Paris Sud - Paris XI
UMR 8502 Université Paris Sud 11 91405 Orsay Cedex -  France

We study one-dimensional topological SN and SNS long junctions
obtained by placing a topological insulating nanowire in the proximity
of either one or two SC finite-size leads. Using the Majorana
Polarization order parameter we find that for a finite-size SN
junction the ABS spectrum exhibits a zero-energy extended state which
carries a full Majorana fermion, while the ABS of long SNS junctions
with a phase difference of pi transform into two zero-energy states
carrying two Majorana fermions with the same MP.

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