|Title||Quantum Entanglement and Information|
|Publication Type||Journal Article|
|Year of Publication||2015|
|Authors||Bub, J, Zalta, EN|
|Journal||The Stanford Encyclopedia of Philosophy|
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.