Nonlinear transport and logic operations with nanoelectronic devices

Advanced lithographic techniques allow the fabrication of strongly confined semiconductor nanostructures. In the ballistic nonlinear transport regime, nanoelectronic devices show several electric properties very different from those of diffusive conductors. We focus on recent studies of hybrid quantum wires and Y-branches realized by electron beam lithography and etching techniques of modulation doped GaAs/AlGaAs heterostructures in relation to nanoelectronic applications, such as amplifiers, sensors and logics gates. Morphing logics based on a recently observed logic stochastic resonance and as well as supercycles in memory mode driven quantum dot arrays are discussed.

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