I have been reading a lot about quantum computation by using topological materials and I could see that the standard approach is to engineer a p-wave superconductor by using a 1-D semiconductor wire with strong spin orbit coupling combined with a s-wave superconductor as well as a magnetic field. By adjusting the different ingredients properly, a topological phase transition takes place in the system and as a result you get Majorana Zero Modes (MZM) at the ends of the wire.

However, I have noticed that there ir another possibility for coming up with MZM that consists of combining a pure topological insulator such as Bi2Se3, or Bi2Te3 with a superconductor so you end up with a topological superconductor.

I do not understand the advantage or disadvantages of one process over the other, I mean, is there any fundamental difference why we should prefer the second route over the first one? Is a magnetic field necesary in the second route?


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.