[Pw_forum] Definition of the electron-phonon coupling matrix element
Alex Kutana
alex.kutana at gmail.com
Fri Mar 16 00:09:31 CET 2012
Dear PW forum users:
Does anyone here know the exact definition of the electron-phonon coupling
matrix element in Quantum Espresso (array el_ph_mat in the file elphon.f90)?
It almost seems like every author is using their own definition of g, but
which one is actually calculated? In particular, is g divided by the square
root of frequency?
Thank you.
Alex
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