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On Tue, Jan 24, 2017 at 1:00 PM, Camilla Espedal
<camilla.espe...@ntnu.no> wrote:
Dear Anton,
I triend changing it, but that does not solve the problem.
Best,
Camilla
From: Anton Akhmerov [mailto:anton.akhmerov...@gmail.com]
Sent: 24. januar 2017 12:36
To: Camilla Espedal <ca
: Christoph Groth [mailto:christoph.gr...@cea.fr]
Sent: 27. oktober 2016 12:15
To: Camilla Espedal <camilla.espe...@ntnu.no>
Cc: kwant-discuss@kwant-project.org
Subject: Re: [Kwant] Family-dependent onsite potential
Camilla Espedal wrote:
> (...)
> but it does not work. I get error message:
Hello,
I am making a system with 2 sublattices, so they belong to different families
(a and b), and I wish to define a sublattice-dependent onsite energy. I tried
using the following code for the onsite function.
def onsite(site):
onsite_a = 2
onsite_b = 2
return onsite_a if
Hello Antônio,
So here is what I want to do. I have a system where I have defined two
lattices, lat_up and lat_down, and they overlap spatially (instead of using
matrices in the voltage and hopping, so that it is easier to obtain
spin-resolved data). They are defined like this:
lat_up =
Hi again,
This question is sort of related to one of mye previous questions
(https://www.mail-archive.com/kwant-discuss@kwant-project.org/msg01029.html)
but I am writing it as a new one. The questions relates to the sites in the
lead unit cell and the scattering matrix.
Say I have a system
Hi again,
So my final question is then. What is the unit cell? Doesn't a square lattice
only have one site per unit cell? Or is it the number of interface sites?
Best,
Camilla
Hi Joe,
Thank you. This might be a silly question, but what is the meaning of orbitals
here? Is it not only 1? The orbital elements seem to be conjugate of each other.
Best,
Camilla
Hi all,
I have a question regarding the lead_info[x].wave_functions[x]. I am not sure
what this is actually returning? I tried to run the function on your
quantum_wire_revisited.py-system, like this
prop = sm.lead_info[0]
print(prop.wave_functions[0])
with W = 2, if that is important.
Hi again,
I am trying to make sense of the error message I get when trying to plot using
kwant.plotter map(). The error message is "the reference distance a is too
small", and a is the lattice spacing. What is the meaning of this error message?
Best,
Camilla
Hi again,
I was wondering if there is an easy way to define different regions with
different hoppings? E.g. what I want to achieve is to make system where the
hopping from one of the leads into the scattering region is different from the
hopping within the lead and the scattering region. How
Thanks, I now changed the order, but I still get the same error message. So now
the code reads
kwant.plotter.map(sys, V)
sys = sys.finalized()
but now it seems to be in a different place the error message is now 'int'
object has no attribute 'site', and the V-function is still
def
to another, if that makes sense.
Best,
Camilla
-Original Message-
From: Anton Akhmerov [mailto:anton.akhme...@gmail.com]
Sent: 31. oktober 2016 11:48
To: Camilla Espedal <camilla.espe...@ntnu.no>
Cc: kwant-discuss@kwant-project.org
Subject: Re: [Kwant] Hopping between different la
2016 14:41
To: Camilla Espedal <camilla.espe...@ntnu.no>; Anton Akhmerov
<anton.akhme...@gmail.com>
Cc: kwant-discuss@kwant-project.org
Subject: Re: [Kwant] Hopping between different lattices and families
[https://share.polymail.io/v2/z/a/NTgxNzQ5YTNkNTEz/xU
Dear Kwant team,
(am using the development version, 1.3)
I am trying to plot the potential of my system and I want to use the
hamiltonian(ind,ind,*args) function, but I don't understand how to use the
args. Normally, I would give a vector with the values of the args as input, but
this
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