Hello,
This problem is about cooper pair formation and what happens with the calculations if there is an attractive potential between electrons but it is not in the presence of a filled fermi surface.
1. Homework Statement
Two electrons just above the filled Fermi Surface of a material can...
Homework Statement
Particle is placed in a field of two shallow one-dimensional potential wells approaching each so that:
##V(x,t)=U(x-\frac{L(t)}{2})+U(x+\frac{L(t)}{2})##
(Reminder: shallow well is a well that can support only one bound state). At t=-∞ the wells are infinitely far apart...