Hi Sajad,
> Dear all,
>
> I need to access to the number of atoms of my unit cell,
> the eigenvalue and eigenvectors for each eigenvalue of my Hamiltonian.
>
> Is there any one to help me and let me know if it is possible in kwan
> to access them.
>
Could you post a short code example showing what you are doing? You
refer to "atoms" and "unit cell", so I presume that you are trying to
create a system with translational symmetry, and that each Kwant *site*
corresponds to a single atom.
It is not 100% clear to me what you want when you say "the eigenvectors
and eigenvalue" of your Hamiltonian; if your system has translational
symmetry then presumably you want the eigen-decomposition *at a given
quasi-momentum*, but you do not explicitly state this, so I am not sure.
Posting a complete code example is useful because it is more precise
than describing your problem with words.
Happy Kwanting,
Joe
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