Physical and circuit modeling of coupled open quantum systems

Recently, we proposed new complementary logic circuits using nano-scale coupled quantum wells [12]. In this paper, we explore a systematic way of modeling the device at physical and circuit levels for nano-scale coupled open quantum systems. The physical interface between coupled and uncoupled regions is considered as a junction where electrons can be coherently injected. The circuit model treats the system as a multimode ID system with virtually separated nodes assigned for the chemical and static potentials. The model explains simulated tunneling lineshapes well.