Tutorials for the Kwant Python library – Kwant as a playground for learning quantum transport

Haldane Model Nanoribbon

In this notebook we are going to examine some properties of Haldane model of graphen by the use of Kwant package. In the firs step we need to define our system. The crucial…

Haldane Model Semi-analytics

In this project we would like to demonstrate Haldane model. It is an example of a bicatomic honeycomb lattice. The idea proposed by Haldane was to indroduce complex…

Quantum Point Contact

A Quantum Point Contact (QPC) is a nanostructured device that allows the controlled flow of electrons through a narrow constriction or channel in a quantum system. It is a…

Two Dimensional Lieb Model

The Lieb lattice is a two dimensional square lattce with five atomic sites per unit cell.

SSH Model Eigenmodes

In this toutorial we want to consider quite easy toy model of polymer which cointein two kinds of atoms per unit site called as a SSH model. It is quite transparent model…

Lieb Model QPC

In the make_system function, the lattice is defined using kwant.lattice.Polyatomic. The lattice vectors and basis vectors are specified, and sublattices lat.a, lat.b, and lat…

One Dimensional Scattering

In this tutorial, we will explore how to simulate one-dimensional scattering in a lattice. We will walk through the steps to create a lattice system, calculate the…