Dear all,
I am confused by the electron self-energy in phonon-assisted optical absorption calculation.
I have checked many references, but I couldn't find the calculation relationship between the absorption coefficient and the self-energy (calculated by EPW). I guess it is related to the calculation of energy levels \varepsilon .
My question is that I used the GW calculation results (which include the self-energy calculation and incorporate it into the energy level by perturbation), and now I want to know how the electronic self-energy (including electron-phonon interactions) is incorporated.
Any help will be appreciated.
Best regards.
Youzhao Lan
Zhejiang Norm. University.
China
About electron self-energy in phonon-assisted optical absorption calculation
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