Yambo Community Forum

Dear all,
I want to solve BSE on the basis of the calculated GW band, but the calculated GW band gap is a little large. Can I cite the GW database and add a negative scissor operator at the same time by setting "KfnQPdb" and "KfnQP_E" ?
Many thanks~!

Dear Shan Dong,

in principle, yes, but I never tried so I do not know if the code can get confused. You can have a try, then it is easy to inspect if it worked correctly by inspecting the non-interacting spectrum.
If it does not work, Probably is safer to assign KfnQP_E only according to what you get from the GW calculation and the manual correction you want to apply.

Best,
Daniele