kwant.system – Low-level interface of systems¶This module is the binding link between constructing tight-binding systems and doing calculations with these systems. It defines the interface which any problem-solving algorithm should be able to access, independently on how the system was constructed. This is achieved by using python abstract base classes (ABC) – classes, which help to ensure that any derived classes implement the necessary interface.
Any system which is provided to a solver should be derived from the appropriate class in this module, and every solver can assume that its input corresponds to the interface defined here.
System |
Abstract general low-level system. |
InfiniteSystem |
Abstract infinite low-level system. |
FiniteSystem |
Abstract finite low-level system, possibly with leads. |
PrecalculatedLead([modes, selfenergy]) |
A general lead defined by its self energy. |