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el-ph constants at various q-points & average el-ph constant

Posted: Wed Oct 22, 2025 6:24 am
by topgun
Dear Ponce,

In the 'hands on' of "electron-phonon coupling in QE" of "Summer School 2018"

I have the following questions

1. In the example for Pb: the code generates el-ph constants at various q-points. how to get average el-ph constant for all of the material
2. Do these calculations using QE takes into consideration "vertex correction"
3. Difference in calculating using QE and EPW

top gun