I have a couple of question about the recent experimental evidence of Majorana edge states in topological superconductors.
Which are the main differences between the experimental signatures of Majorana edge states found in the work of Kouwenhoven (http://www.sciencemag.org/content/336/6084/1003.abstract), and in that of Yazdani (http://www.sciencemag.org/content/346/6209/602.abstract)?
Does their experimental signatures (zero-bias conductance) be in principle explained without invoking Majoranas?
And finally, are there other experimental methods which have provided, or could reasonably provide in the next time, experimental evidence of the presence of Majorana edge states in topological superconductors, other than those based on measuring the zero-bias conductance peak?
PS: My question is related with this other "Experimental signature of topological superconductor".