Multipartite Nonlocality in Clifford Networks
arXiv:2208.04731 · doi:10.1103/PhysRevLett.130.240802
Abstract
We adopt a resource-theoretic framework to classify different types of quantum network nonlocality in terms of operational constraints placed on the network. One type of constraint limits the parties to perform local Clifford gates on pure stabilizer states, and we show that quantum network nonlocality cannot emerge in this setting. Yet, if the constraint is relaxed to allow for mixed stabilizer states, then network nonlocality can indeed be obtained. We additionally show that bipartite entanglement is sufficient for generating all forms of quantum network nonlocality when allowing for post-selection, a property analogous to the universality of bipartite entanglement for generating all forms of multipartite entangled states.
arXiv comment5+6 pages, 2 figures, 1 table; discussion about a unifying framework for the study of network nonlocality was added; updated version to match journal publication
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