Yambo Community Forum

Dear friends

I want to calculate the lifetime of quasiparticle excitations along special k-path. As yambo works only with uniform-grid in scf input, when I prepare scf input along one k-path, I faced with this message which just Gamma point is selected " X grid is not uniform. Gamma point only". How should I tackle this problem (quasiparticle calculation on non-uniform grid)?

Bests

Ali Kazempour, Physics Dept., PNU university,Yazd, Iran

Dear Ali,
yes, yambo needs uniform k-point grid to calculate GW corrections. Anyway if you want to calculate GW corrections (or lifetimes) on a generic k-point you can take advantage from the ypp utility.
Please have a look at the example reported here:
http://www.yambo-code.org/input_file/ypp/ypp_kk.php

Best,
Daniele