Thanks for your attention.

I try to find the local density of fermions in the ground state of the extended Hubbard model using DMRG with OBC
for L=40 , U=0 and V=4 ( density.txt file) but the  local density in the ground state must be as localdens.dat file (calculated using the other code). I think that a potential on boundary must be added to evaluate local density in the ground state with OBC.



On Sun, Sep 28, 2014 at 6:26 PM, Matthias Troyer <troyer@phys.ethz.ch> wrote:
Why would you like to add that?

I don't understand that you need to add a term to find the ground state, since you will find the ground state of whatever model you put in.

On 27 Sep 2014, at 21:22, hamid mosadegh <hamid.mosadegh@gmail.com> wrote:

> Dear all
>
> It seems that we must put a potential on boundary to obtain the ground state using DMRG.
> How i can add a term as V/2*(n(1)+n(L)) to fermion model in models.xml
>
> Thanks
>
>
>
> --
> H. Mosadeq
> Shahr-e-Kord University (SKU),
> Shahr-e-Kord , Iran
>




--
H. Mosadeq
Shahr-e-Kord University (SKU),
Shahr-e-Kord , Iran