@@ -17,21 +17,20 @@ systems and phenomena is within reach of one software package.
Kwant does not use the traditional input files often found in scientific
software packages. Instead, one writes simple Python programs (using the
Python's simple and very expressive syntax) to define the system and calculate
its quantum properties (conductance, density of states, etc). Kwant was
designed to be easy to use, and accessible for people without expertise in
numerics. It also comes with a detailed hand-on `tutorial </docs/tutorial/>`_
and the Kwant `paper </paper>`_, which describes the guiding principles
underlying its design.
its quantum properties (conductance, density of states, etc). This workflow is
summarized as follows:
Kwant is provided to the physics community as an open source free software (we
merely ask you to quote Kwant article in scientific publications where Kwant
was used). Below a few research applications of Kwant are shown.
.. image:: kwant_workflow.png
Chaotic billiard
----------------
Kwant was designed to be easy to use: for example the program that generates
the right panel of the image above is only 42 lines long. It is also accessible
for people without expertise in numerics. To aid that, it is provided along
with a detailed hand-on `tutorial </doc/1.0/tutorial/>`_ and the Kwant `paper
</paper>`_, which describes the guiding principles underlying its design.
This figure shows the local density of state of a quantum billiard with a stadium shape.
The entire code to perform this calculation (including making the figure) is reproduced below and is, as one can see, rather small.
Kwant is provided to the physics community as an open source free software (we
merely ask you to cite Kwant article in scientific publications using
Kwant). Below a few research applications of Kwant are shown.
3-d systems
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...
@@ -41,8 +40,9 @@ The entire code to perform this calculation (including making the figure) is rep
.. image:: 3d_systems.png
In this example, one can see a quantum wire (gray) to which is attached a superconducting electrode (blue).
This device has been built in order to give rise to a Majorana bound states close to the superconducting-normal interface.
In this example, one can see a quantum wire (gray) to which is attached a
superconducting electrode (blue). This device has been built in order to give
rise to a Majorana bound states close to the superconducting-normal interface.
The latter can be seen in the spectrum of the device (REF).
...
...
@@ -53,12 +53,16 @@ Flying qubit
.. image:: flying-qubit.png
This example shows some numerical simulations (left) and experimental results (right) for a flying Qubit sample made in a
GaAs/GaAlAs heterostrucutre. See Yamamoto et al, Nature Nanotechnology 7, 247 (2012) for details about this experiment.
(Simulations: T. Bautze et al. to be submitted to Phys. Rev. B). In this example, particular attention was paid to designing a realistic
model for the confining potential seen by the electrons so that rather subtle aspects of the experiments could be reproduce. Such type of
"numerical experiments" can not only be used to interpret the experimental data but also as an aid in designing the sample geometry or in the choice of
materials.
This example shows some numerical simulations (left) and experimental results
(right) for a flying Qubit sample made in a GaAs/GaAlAs heterostrucutre. See
Yamamoto et al, Nature Nanotechnology 7, 247 (2012) for details about this
experiment. (Simulations: T. Bautze et al. to be submitted to
Phys. Rev. B). In this example, particular attention was paid to designing a
realistic model for the confining potential seen by the electrons so that
rather subtle aspects of the experiments could be reproduce. Such type of
"numerical experiments" can not only be used to interpret the experimental data
but also as an aid in designing the sample geometry or in the choice of
