|Efficiency factor in electron linewidth calculation
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|Author:||Shouhang [ Fri May 10, 2019 3:40 am ]|
|Post subject:||Efficiency factor in electron linewidth calculation|
Dear EPW users,
I read the paper “EPW: Electron–phonon coupling, transport and superconducting properties using maximally localized Wannier functions” which is published on CPC. I found in (8) and (9), you do not include the efficiency factor, which is defined as following
I checked the EPW code in version QE. 6.3 and I found for phonon linewidth, the efficiency factor is added and we can extract the phonon linewidth through the parameter gamma_tr. However, there is no efficiency factor for the electron linewidth calculation. Is this reasonable?
I also checked other papers and I find other papers (PRB 94，155105 (2016) PRB 57， 11276 (1998)) considered the efficiency factor.
Could you give some comments about this issue?
Thank you in advance!
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