All nonclassical correlations can be activated into distillable entanglement

Marco Piani, Sevag Gharibian, Gerardo Adesso, John Calsamiglia, Paweł Horodecki, Andreas Winter

Research output: Contribution to journalArticleResearchpeer-review

189 Citations (Scopus)


We devise a protocol in which general nonclassical multipartite correlations produce a physically relevant effect, leading to the creation of bipartite entanglement. In particular, we show that the relative entropy of quantumness, which measures all nonclassical correlations among subsystems of a quantum system, is equivalent to and can be operationally interpreted as the minimum distillable entanglement generated between the system and local ancillae in our protocol. We emphasize the key role of state mixedness in maximizing nonclassicality: Mixed entangled states can be arbitrarily more nonclassical than separable and pure entangled states. © 2011 American Physical Society.
Original languageEnglish
Article number220403
JournalPhysical Review Letters
Publication statusPublished - 3 Jun 2011


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