Can you name what ingredients are required in order to have Majorana zero modes?
We have seen at the beginning of the video that a possible set up includes an InSb nanowire with a superconductor on top. These are two important ingredients: a semiconducting nanowire and a superconductor. Besides this, it is important that the semiconductor material has strong spin-orbit coupling and that we can tune the chemical potential in the system.
Finally, to have Majoranas we need a magnetic field parallel to the nanowire. This is what we see at the end of the video: only by increasing the magnetic field we will see the Majorana zero-bias conductance peak.