Time-dependent quantum waveguide theory: A study of nano ring structures

As electronic circuits get progressingly smaller to the nanometre scale, th e quantum wave nature of the electrons starts to play a dominant role. It i s thus possible for the devices to operate by controlling the phase of the quantum electron waves rather than the electron density as in present-day d evices. This paper presents a highly accurate numerical method to treat qua ntum waveguides with arbitrarily complex geometry. Based on this model, a v ariety of quantum erects can be studied and quantified.