Ontology highlight
ABSTRACT:
SUBMITTER: Sutter D
PROVIDER: S-EPMC4841654 | biostudies-literature | 2016 Feb
REPOSITORIES: biostudies-literature
Sutter David D Fawzi Omar O Renner Renato R
Proceedings. Mathematical, physical, and engineering sciences 20160201 2186
A central question in quantum information theory is to determine how well lost information can be reconstructed. Crucially, the corresponding recovery operation should perform well without knowing the information to be reconstructed. In this work, we show that the <i>quantum conditional mutual information</i> measures the performance of such recovery operations. More precisely, we prove that the conditional mutual information <i>I</i>(<i>A</i>:<i>C</i>|<i>B</i>) of a tripartite quantum state <i> ...[more]