4.1.4. tkwant.system.ExtendedSystem

class tkwant.system.ExtendedSystem(syst, H0, boundary_slices, solver, work, tmax=None)[source]

Hamiltonian matrix of central system + boundary conditions.

  • hamiltonian (coo_matrix) – The Hamiltonian matrix of the central system + boundary conditions.

  • boundary_slices (sequence of slice) – Slices into hamiltonian that project onto the boundary conditions.

  • syst (FiniteSystem) – The original kwant system.

  • tmax (float, optional) – Optional maximal time until when the boundary is valid.