DPG Phi
Verhandlungen
Verhandlungen
DPG

Regensburg 2013 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

O: Fachverband Oberflächenphysik

O 85: Transport: Topological Insulators (jointly with DS, HL, MA, and TT)

O 85.4: Vortrag

Freitag, 15. März 2013, 10:15–10:30, H18

Zero-voltage conductance peak from weak antilocalization in a Majorana nanowire — •Michael Wimmer1, Dimitri Pikulin1, Jan Dahlhaus1, Henning Schomerus2, and Carlo Beenakker11Instituut-Lorentz, Universiteit Leiden, The Netherlands — 2Department of Physics, Lancaster University, United Kingdom

We show that weak antilocalization by disorder competes with resonant Andreev reflection from a Majorana zero-mode to produce a zero-voltage conductance peak of order e2/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 time-reversal symmetry and without requiring a topologically nontrivial phase. We identify methods to distinguish the Majorana resonance from the weak antilocalization effect.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2013 > Regensburg