......In my previous message, I was referring to the case of 1d. the unit is (1/a). In 2 and 3 dimensions it will be (1/V), where V is the unit volume. Adel
On Mon, Oct 22, 2018 at 9:40 AM Marc Vila email@example.com wrote:
Dear Kwant developers,
I've found in other threads in the mailing list that the units of current is for example (unit of charge)/(hbar/unit of energy) ( https://firstname.lastname@example.org/msg01100.html). Also, the local density of states has units of energy/volume ( https://email@example.com/msg00169.html ).
My question is, what is the units of the output of the density operator? Is it energy/volume as well? I ask this because intuitively I view it as the square of the wavefunction, but it gives me values larger than 1 for each site when there is only 1 mode involved (see attached picture) so it is not just the probability of findinge the electron at that site because this should be maximum 1. I have also noticed that the values I get in the colorbar depend on the value of my hopping (e.g. case of graphene), but overall I'm not so sure of the units.
Thank you again for your help.