Dear Jiayu Dai,
Prof. R. Godby is one of the most famous scientist who worked on many-body
theory. i think this lecture should be help full for you.
{Many-Body Theory and DFT / TDDFT
Rex Godby"
http://docs.google.com/viewer?a=v&q=cache:gBMHk9QaO3cJ:www.tddft.org/TDDFT2006/2006tddft/docs/school/Godby.pdf+TDDFT+and+GW&hl=en&pid=bl&srcid=ADGEESiq9Au0dGZsFvyPUtLL9nEaPg44xzN8NzkJiiguvyAdyTFUpucP8XOKWMyrKammwPLMDfQZncmtgoh8NA-PFsRKaUxsRnrdbFId7a7dW2mkkOHqrr4TFgpalZC775KF1njtbF4p&sig=AHIEtbTLv5XgSx5m0wfXO3sMV7vzJlgOtg&pli=1Hope it helps, 2011/4/13 jiayudai <daijiayu at nudt.edu.cn> > Dear users, > > It is well known that GW method can give much more accurate band gap since > it considers many body interaction, and thus it can give more accurate > optical properties. What i am thinking is that what's the difference between > the optical properties from TDDFPT and GW. I mean, TDDFPT has the same > accuracy as the GW method? or what's the advantage of TDDFPT over the GW > except the computationl cost? > > Thanks a lot. > > Jiayu > > > ------------------------------------------- > Jiayu Dai > Department of PhysicsNational University of Defense Technology, > Changsha, 410073, P R China > ----------------------------------------- > > > > > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://www.democritos.it/mailman/listinfo/pw_forum > > -- Mohsen Modarresi, PhD student of Solid State Physics, Ferdowsi University of Mashhad, Iran. Phone +98-9133452131 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20110413/64227233/attachment.htm
