Compatibility of quantum states

TitreCompatibility of quantum states
Type de publicationJournal Article
Nouvelles publications2003
AuteursPoulin, D, Blume-Kohout, R
JournalPhysical Review A
Volume67
Pagination010101(R)
Mots clésFoundations
Résumé
We introduce a measure of the compatibility between quantum states–-the likelihood that two density matrices describe the same object. Our measure is motivated by two elementary requirements, which lead to a natural definition. We list some properties of this measure, and discuss its relation to the problem of combining two observers' states of knowledge.
Texte complet
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