Gennaro Auletta, Shang-Yung Wang
We have already hinted at the relevance of information for measure- ment. In the last chapter we have considered the relevance of non- local correlations. It is time to deal again with measurement and non-locality from the point of view of information. Indeed, in this chapter, we shall learn how to treat quantum systems as information processors along the lines of quantum reversibility presented in Section 9.7. After providing a brief discussion on the nature of information, we introduce the concepts of information accessibility and partial information. We shall present a basic analysis of some commonly used quantum gates in quantum computation. Quantum teleportation and the quantum key distribution problem are then analyzed. Finally, the important concept of mutual information and its relation to quantum non-separability are discussed.
•Jun 20, 2014•0 citations