swan | An open-source C software for efficient nanoscale quantum

swan is a C++ library. swan has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

Swan (Self-consistent Wannier-function-based quantum transport solver) is an open-source C++ software suitable for large-scale atomistic simulations of electronic structures and transport properties for nano-devices. By using a Wannier function basis (as implemented in the Wannier90 package) to accurately describe the electronic bands, our code is able to efficiently model device structures with first-principles accuracy at a minimal cost of tight-binding calculations. It couples the Keldysh non-equilibrium Green's function formalism and Poisson solver to generate the inhomogeneous charge densities self-consistently with the electrostatic potential profile for the simulated device region. The parallel implementation of the code uses the standard Message Passing Interface (MPI). We depicted our simulation pipeline as below:. For more details, please refer to the related paper "Quantum electron transport in ohmic edge contacts between two-dimensional materials" (Author: Wushi Dong (dongws@uchicago.edu) of the Physics Department at The University of Chicago. (Advisor: Peter B. Littlewood). The author would like to acknowledge the C++ linear algebra library Armadillo.