Zero-voltage conductance peak from weak antilocalization in a Majorana   nanowire
  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 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 time-reversal symmetry and without requiring a topologically nontrivial phase. We identify methods to distinguish the Majorana resonance from the weak antilocalization effect. 
D. I. Pikulin, J. P. Dahlhaus, M. Wimmer, H. Schomerus, and C. W. J.   Beenakker
cond-mat.mes-hall cond-mat.dis-nn