Dear all,
I am trying the ex-ph module, and my result seems to be that the ndb.excph_gkkp_fragment_1 EXCITON_PH_GKKP_SQUARED_Q1 matrix is generated by incident excitons, phonons and virtual excitons |g|. May I ask how or where the exciton Q and phonon q are set?
Thanks!
Pangrt
Variable of ex-ph matrix element
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pangrt
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Variable of ex-ph matrix element
RongTianPang, Inner Mongolia University, Hohhot, China 
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claudio
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Re: Variable of ex-ph matrix element
Dear Pangrt
may you tell exactly which example are you following for the exicton-phonon?
In general Yambo automatically takes care of momentum conservation as Q' = Q-q or Q'=Q+q
But if you give me more information I can give you a better answer
best
Claudio
may you tell exactly which example are you following for the exicton-phonon?
In general Yambo automatically takes care of momentum conservation as Q' = Q-q or Q'=Q+q
But if you give me more information I can give you a better answer
best
Claudio
Claudio Attaccalite
[CNRS/ Aix-Marseille Université/ CINaM laborarory / TSN department
Campus de Luminy – Case 913
13288 MARSEILLE Cedex 09
web site: http://www.attaccalite.com
[CNRS/ Aix-Marseille Université/ CINaM laborarory / TSN department
Campus de Luminy – Case 913
13288 MARSEILLE Cedex 09
web site: http://www.attaccalite.com