[Pw_forum] questions about the electron-phonon coupling coefficients g

Xiaoyu Liu xiaoyuliu at 126.com
Fri Apr 7 16:02:54 CEST 2017


Hi, 
I would like to integrate over k myself the electron-phonon coupling matrix, and I have several questions:
1. Is the file named elph.*.*.xml the <\psi_k|dVscf/du|\psi_k+q> or coefficients (hbar/(2M\omega_qv))**(1/2) included?
2. Why in different q point file, the number of the k point is not the same? Where can I find the weight of the k points?


Xiaoyu Liu
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