[Octopus-users] TDDFT

[Myrta Grüning]

Hallo,

If you are looking to a theory to treat these N particles with different
mass and charge on a same footing then you may look at the multicomponent
extension of (TD)DFT. There is one chapter of the TDDFT book

<<Time-dependent Density Functional Theory, M. A. L. Marques and C. A.
Ullrich and F. Nogueira and A. Rubio and K. Burke and E. K. U. Gross
(editors), Springer Berlin Heidelberg New York, (2006)>>

dedicated to multicomponent DFT. Also there is a recent PRL
doi:10.1103/PhysRevLett.101.153001

In standard (TD)DFT on atoms, molecules solids, nuclei are considered as
external potential.

I hope this answers to your question,

cheers
m

> Hi, all.
>
> Sorry for all the lousy questions. I'm new to this theory, and new to
> OCTOPUS.
>
> I have been reading a few papers about TDDFT.  All these papers are
> talking about TDDFT for N-electron systems.  It seems to me TDDFT is a
> theory for systems with  N-charged particles with  same charge and same
> mass, for example N electrons with same mass and same negative charge. 
>
> What if  a system is of N particles  but with different mass and charges (
> both positive and negative),  can TDDFT describe such systems? or There
> has some similar theory can handle such systems?
>
> Thanks,
> ST
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Dr Myrta Grüning - Investigador Auxiliar

Centre for Computational Physics and
Physics Department
University of Coimbra
Rua Larga
3004-516 COIMBRA
PORTUGAL

Phone: + 351 239410114
Fax: + 351 239829158
URLs: www.myrta.eu
      www.researcherid.com/rid/B-1515-2009