Quantum Entanglement and Information

TitleQuantum Entanglement and Information
Publication TypeJournal Article
Year of Publication2015
AuthorsBub, J, Zalta, EN
JournalThe Stanford Encyclopedia of Philosophy
Date Published02/07/2015

Quantum entanglement is a physical resource, like energy, associated with the peculiar nonclassical correlations that are possible between separated quantum systems. Entanglement can be measured, transformed, and purified. A pair of quantum systems in an entangled state can be used as a quantum information channel to perform computational and cryptographic tasks that are impossible for classical systems. The general study of the information-processing capabilities of quantum systems is the subject of quantum information theory.