Quantum computing models as a tool box for controlling and understanding the nanoscopic world

Abstract

Progress in controlling quantum systems is the major pre-requisite for the realization of quantum computing, yet the results of quantum computing research can also be useful in solving quantum control problems that are not related to computational problems. We arguethat quantum computing provides clear concepts and simple models for discussing quantum theoretical problems. In this article we describe examples from completely different fields where models of quantum computing and quantum communication shed light on quantum theory.