I notice that there is a commented parameter:
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#WehCpl # [BSK] eh interaction included also in coupling
result in the attachment (the png file), I find that the first absorption peak for G0W0+BSE calculation (black line) appears at 3.6 eV or so. But the first 0K absorption peak
(red line) appears at 5.6 eV or so. I've include the G0W0 correction in terms of a 2.0 eV scissor operator. If the el-hole coupling is correctly included, the 0K absorption should have similar peak energy as the G0W0+BSE result since the epc correction is just perturbative and can't contribute such big discrepancy. Is the el-hole coupling really well-behaved in coupling mode BSE calculation?
Thanks