1203.4488 (Elsa Prada et al.)

Transport spectroscopy of NS nanowire junctions with Majorana fermions    [PDF]

Elsa Prada, Pablo San-Jose, Ramon Aguado

We investigate the differential conductance $dI/dV$ of normal-superconductor nanowire junctions in the presence of spin-orbit coupling and magnetic field. As the Zeeman field crosses the critical value $B_c$ of the topological transition, a Majorana bound state (MBS) is formed, giving rise to a sharp zero-bias anomaly (ZBA) in the tunneling $dI/dV$, in agreement with previous works. We identify novel features beyond this picture, such as topological signatures in the transparent contact limit or the development of a ZBA for $BView original: http://arxiv.org/abs/1203.4488