Two-body quantum transport theory of interacting electrons in laterally patterned semiconductor 2DEG structures
A previous coupled-mode formalism for quantum transport in semiconductor two-dimensional electron gases is extended to interacting electrons. The monomode case has similar effective potentials to the single-carrier theory arising from the curvature of the actual confinement potential. In the case of the tunnelling of two electrons through a constriction in monomode a new phenomenon of Coulomb-assisted resonant tunnelling on single barriers is proposed and confirmed by numerical solutions to the two-body wave equation.