writing \chi_0(q, G=G'=0) and rho(q, G=0)

Deals with issues related to computation of optical spectra, in RPA (-o c) or by solving the Bethe-Salpeter equation (-o b). Includes local field effects, excitons, etc.

Moderators: Davide Sangalli, andrea marini, Conor Hogan, myrta gruning

writing \chi_0(q, G=G'=0) and rho(q, G=0)

Postby sky-zhou » Thu Nov 22, 2018 3:55 pm

Dear Yamboo developer,

I want to write the independent-particle response function at G=G'=0, i.e., \chi_0(q, G=G'=0), and the oscillator strength rho defined as rho(q)=<k1,b1|e^{- iqr}| k2, b2>. Could you please how can I find them? I am a new Yambo user. I found in routine "vi src/wf_and_fft/scatter_Bamp.F" rho is difined as "rhotw(G)=<ib ik_is i_sp| e^[I(RsG-G0).r] | ob ok_os o_sp>", thus I would like to print ib, ik_is, , ob, ok_os, rhotw(G=0).
Thank you very much in advance!


Jianqiang Sky ZHOU
Institut des NanoSciences de Paris (INSP)
European Theoretical Spectroscopy Facility
Posts: 8
Joined: Mon Feb 19, 2018 12:32 pm

Re: writing \chi_0(q, G=G'=0) and rho(q, G=0)

Postby claudio » Fri Nov 23, 2018 9:34 am

Dear Sky

dipole matrix elements are calculated in


while the dielectric constant is constructed in


Claudio Attaccalite
Institut Neel, CNRS/UJF ABINEEL group
25 rue des Martyrs BP 166, B√Ętiment D
38042 Grenoble cedex 9 France
web site: http://www.attaccalite.com
Freely download scientific books from: http://www.freescience.info
User avatar
Posts: 217
Joined: Tue Mar 31, 2009 11:33 pm

Return to Linear Response

Who is online

Users browsing this forum: No registered users and 2 guests