Measurement and Information Extraction in Complex Dynamics Quantum Computation

Abstract

In this paper, we address a different and very general problem related to the extraction of the information. Indeed, the information is encoded in the wave function, and apart from very particular situations, it is hard to find a way to address and extract the useful information. Commonly, when trying to extract information, the efficiency of quantum information processing is lost. This is one of the main problems to solve while looking for new quantum algorithms. However, in some cases, these difficulties can be bypassed, as in Shor, Grover and other well-known quantum algorithms.