Quantum chaos in nano-electronic structures: Impossible or only unmeasureable?

The presented contribution is motivated by some fundamental issues arising in nonlinear nanostructures such as Chua´s memristance effect, the Hall-effect or the famous Josephson effect. Some general features of three fundamentally different approaches are presented: An application of standard quantum-theoretic approach, a nonlinear model based technique of classical mechanics using an obvious analogy with double pendulum dynamics, and finally a newly proposed abstract state space energy based design method.