Dear all,
I want to sum lambda(q,mode) (e-ph coefficient) over BZ for each mode. From the
number of the starts of each q-point I calculate the weights for each q point
(number of stars of that q point/total number of starts of all q points). Then
I do a summation over q points in IBZ (lambda(q,mode)w(q)). But when I
calculate the total lambda from the summation over all the modes I get a
different value from what QE itself calculates by matdyn program (matdyn
calculates it from the integration of Eliashberg's function). So do you think I
haven't do it correctly or what has caused this difference (about 20-30%)?
Should I also take into account the electronic part by some means? I asked it
because I've change one electronic structure parameter but the trends of total
lambda of main and QE are different.
Thank you in advanced.
Ali