2011/12/12 by Rodrigo Gallego, Lars Erik Würflinger, Lars E. Würflinger +2 · 199 citations
Computer Science · Physics and Astronomy · #Characterization (materials science) #Computer network #Computer science #Consistency (knowledge bases) #LOCC #Multipartite #Multipartite entanglement #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 nonlocality #Resource (disambiguation) #Squashed entanglement #Theoretical computer science #Theoretical physics #quant-ph
paper · pdf · doi:10.1103/physrevlett.109.070401
published in Physical Review Letters 109(7), 070401 (American Physical Society)
arxiv created 2011/12/12 · openalex publication_date 2012/08/17 · arxiv updated 2013/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Because of the importance of entanglement for quantum information purposes, a framework has been developed for its characterization and quantification as a resource based on the following operational principle: entanglement among N parties cannot be created by local operations and classical communication, even when N-1 parties collaborate. More recently, nonlocality has been identified as another resource, alternative to entanglement and necessary for device-independent quantum information protocols. We introduce an operational framework for nonlocality based on a similar principle: nonlocality among N parties cannot be created by local operations and allowed classical communication even when N-1 parties collaborate. We then show that the standard definition of multipartite nonlocality, due to Svetlichny, is inconsistent with this operational approach: according to it, genuine tripartite nonlocality could be created by two collaborating parties. We finally discuss alternative definitions for which consistency is recovered.