[Kwant] Define an infinite system?

2015-11-29 Thread L.M J
I was trying to calculate the arm-chair graphene nano ribbon band structure. I used translational symmetry to define the lead to be infinite, but I still got an error saying "TypeError: Expecting an instance of InfiniteSystem." I can't identify what's problem here. can anyone help? Thanks for

[Kwant] Spin polarized transport calculation

2016-04-13 Thread L.M J
Dear Kwant users and developers I have two questions related to the spin calculation using kwant. 1. I'm wondering if we can do spin-polarized transport in kwant? For example, can we can get the separate Conductance Vs Energy diagram for spin up and spin down terms. I'm thinking one way of

Re: [Kwant] Issue in display wave function in 3D lattice

2016-07-26 Thread L.M J
nt/kwant/issues/39 > > What version of matplotlib you are using? > > Best, > Anton > > On Wed, Jul 20, 2016 at 2:58 AM, L.M J <heysuperm...@gmail.com> wrote: > > Dear all > > > > I was trying to plot the wavefunction on each site of a 3-D lattice and >

[Kwant] Inconsistent calculation result

2016-07-26 Thread L.M J
Hi Kwant Users I notice an inconsistency in calculation result using Python IDLE (3.5.1, Anaconda3). The issue is that every time I execute the same code, it gives me a different result.The test code that I use is the example code for graphene quantum dot calculation (2.7.1) . First, I used the