Zero-voltage conductance peak from weak antilocalization in a Majorana nanowire

Pikulin, D I and Dahlhaus, J P and Wimmer, M and Schomerus, Henning and Beenakker, C. W. J. (2012) Zero-voltage conductance peak from weak antilocalization in a Majorana nanowire. New Journal of Physics, 14. ISSN 1367-2630

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Abstract

We show that weak antilocalization by disorder competes with resonant Andreev reflection from a Majorana zero mode to produce a zerovoltage conductance peak of order e^2/h in a superconducting nanowire. The phase conjugation needed for quantum interference to survive a disorder average is provided by particle–hole symmetry—in the absence of timereversal symmetry and without requiring a topologically nontrivial phase. We identify methods of distinguishing the Majorana resonance from the weak antilocalization effect.

Item Type:
Journal Article
Journal or Publication Title:
New Journal of Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
61505
Deposited By:
Deposited On:
02 Jan 2013 16:32
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Sep 2020 01:20