Quantum Transport, Lecture 13: Superconductivity

Instructor: Sergey Frolov, University of Pittsburgh, Spring 2013
sergeyfrolov.wordpress.com/
Summary: basics of superconductivity, Cooper pairing, energy gap, Andreev reflection.
Quantum Transport course development supported in part by the National Science Foundation under grant DMR CAREER 1252962.

[@Izuk13]

Hello Sergey, thank you for publishing this course. I want to find out more about superconductivity, and I was wondering: do you maybe have the slides uploaded somewhere, as well?

[@BanAlMandalawi]

Thank you for publishing this :)

[@shohamsen8986]

A doubt : For andreev reflection, is the whole coming from the superconductor into the normal metal? I'm guessing the hole is generated by an electron moving in the opposite direction in the superconductor. So when i shoot the electron from the metal with momentum p, is it the hole in the superconductor with momentum -p that reacts and moves into the metal, shooting an electron with momentum p further into the superconductor? Is this hole generated at the surface fo the superconductor? How do you know that u will have an electron with momentum p on the Superconductor's surface? also, is my understanding correct?

[@ashwinkumark1400]

@50:26 what does he mean by a gap? As I can see there is a non zero value for DOS at every energy for the super conductor state

[@tonix1993]

is it confusing? 27:25 YEA IT IS!!!!!!!!

[@anvarva9377]

+tonix1993 So you are in the right track :)