2011/07/31 by Rodrigo Gallego, Lars Erik Würflinger, Antonio Acín +1 · 100 citations
Computer Science · Physics and Astronomy · #Causality (physics) #Coherent information #Computer science #Context (archaeology) #Multipartite #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum information #Quantum information science #Quantum mechanics #Quantum network #Set (abstract data type) #Statistical physics #Theoretical computer science #Theoretical physics #quant-ph
paper · pdf · doi:10.1103/physrevlett.107.210403
published in Physical Review Letters 107(21), 210403 (American Physical Society) · Appendix added
openalex publication_date 2011/11/15 · arxiv created 2012/01/13 · arxiv updated 2012/01/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Identifying which correlations among distant observers are possible within our current description of nature, based on quantum mechanics, is a fundamental problem in physics. Recently, information concepts have been proposed as the key ingredient to characterize the set of quantum correlations. Novel information principles, such as information causality or nontrivial communication complexity, have been introduced in this context and successfully applied to some concrete scenarios. We show in this work a fundamental limitation of this approach: no principle based on bipartite information concepts is able to singleout the set of quantum correlations for an arbitrary number of parties. Our results reflect the intricate structure of quantum correlations and imply that new and intrinsically multipartite information concepts are needed for their full understanding.