[Pw_forum] Optical absorption using GW approximation

Giuseppe Mattioli giuseppe.mattioli at ism.cnr.it
Sat Oct 18 11:02:11 CEST 2014


Dear Barnali Bhattacharya
You should definitely use yambo. GWL calculates the GW eigenvalues  
("quasiparticles"), but (afaik) does not still perform Bethe-Salpeter  
calculations. See the yambo site for examples of such calculations.
HTH
Giuseppe

Giuseppe Mattioli
ISM-CNR
Italy

Quoting Barnali Bhattacharya <barnalidgbhatt at gmail.com>:

> Dear QE user,
>  I am a new user of quantum espresso. I want to calculate Optical
> absorption using GW approximation in quantum espresso. Can I use Yambo or
> GWL for this?
>
> Could anyone please guide me and share one example.
>
> Thanking you.
>
> Sincerely
> Barnali Bhattacharya
> Ph.D. student
> Assam University


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