A new tutorial on exciton-phonon coupling in Yambo is available. In this tutorial we will show how to generate exciton-phonon matrix elements and calculate phonon-assisted absorption and emission. In the last part of the tutorial the exciton-phonon matrix elements will be used to calculate exciton life-time. The tutorial is based on a preliminary version of Yambo not fully tested, used at your own risk:
https://www.yambo-code.eu/wiki/index.php/Exciton-phonon_coupling_and_luminescence
More detail on this implementation are available in the Phd thesis of Pierre Lechifflart:
Exciton-phonon coupling and phonon-assisted luminescence in hexagonal Boron Nitride nanostructures
Dear Claudio Attaccalite,
Is it possible to calculate exciton-phonon coupling at the TDDFT level instead of BSE?
Probably yes, but I don’t know how to do it exactly.
Try to have a look here:
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.195204