Can we get Fluorescence spectra using Yambo?

[schopra1980]

Dear All,
I am new to Yambo and wish to know more about it before trying it out. Can we calculate Fluorescence spectrsa using Yambo? I have installed Yambo alongwith QE. Please tell me Yambo capabilities. Also can we get UV-Visible absorption spectra using it? I basically want to study the OPTICAL emission and absorption of various samples including thin films and nanoclusters.

Regards,

[Daniele Varsano]

Dear Siddheshwar,
yambo is a code meant to calculate electronic and optical properties at many body perturbation theory (say GW and Bethe Salpeter) and TDDFT. So it calculates absorption spectra in this framework. About emission, it depends in which way you want to calculate it. Yambo cannot relax structures in excited states, so emission (fluorescence) can be calculated equivalently to the absorption once you have the excited state minimun geometry that you need to calculate in other ways at the level of theory you wish. For calculations of absorption, there are tutorials in the yambo web-page.
Hope it helps,
Daniele