kwant.system.PrecalculatedLead

class kwant.system.PrecalculatedLead(modes=None, selfenergy=None)

Bases: object

A general lead defined by its self energy.

Parameters:

• modes ((kwant.physics.PropagatingModes, kwant.physics.StabilizedModes)) – Modes of the lead.

• selfenergy (numpy array) – Lead self-energy.

Notes

At least one of modes and selfenergy must be provided.

Methods

modes(energy=0, args=(), *, params=None)

selfenergy(energy=0, args=(), *, params=None)