We study the interplay between Andreev (Majorana) bound states that form at the boundary of a (topological) superconductor and a train of microwave pulses. We find that the extra dynamical phase coming from the pulses can shift the phase of the Andreev reflection, resulting in the appear- ance of dynamical Andreev states. As an application we study the presence of the zero bias peak in the differential conductance of a normal-topological superconductor junction - the simplest, yet somehow ambiguous, experimental signature for Majorana states. Adding microwave radiation to the measuring electrodes provides an unambiguous probe of the Andreev nature of the zero bias peak.
@article{arxiv.1411.6885,
title = {Manipulating Andreev and Majorana Bound States with microwaves},
author = {Joseph Weston and Benoit Gaury and Xavier Waintal},
journal= {arXiv preprint arXiv:1411.6885},
year = {2015}
}