Genuine multipartite nonlocality is intrinsic to quantum networks
- URL: http://arxiv.org/abs/2004.01722v4
- Date: Fri, 19 Feb 2021 10:46:33 GMT
- Title: Genuine multipartite nonlocality is intrinsic to quantum networks
- Authors: Patricia Contreras-Tejada, Carlos Palazuelos, Julio I. de Vicente
- Abstract summary: We derive sufficient conditions for entanglement to give rise to genuine multipartite nonlocality in networks.
Our results pave the way towards feasible manners of generating genuine multipartite nonlocality using any connected network.
- Score: 0.5156484100374058
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum entanglement and nonlocality are inextricably linked. However, while
entanglement is necessary for nonlocality, it is not always sufficient in the
standard Bell scenario. We derive sufficient conditions for entanglement to
give rise to genuine multipartite nonlocality in networks. We find that any
network where the parties are connected by bipartite pure entangled states is
genuine multipartite nonlocal, independently of the amount of entanglement in
the shared states and of the topology of the network. As an application of this
result, we also show that all pure genuine multipartite entangled states are
genuine multipartite nonlocal in the sense that measurements can be found on
finitely many copies of any genuine multipartite entangled state to yield a
genuine multipartite nonlocal behaviour. Our results pave the way towards
feasible manners of generating genuine multipartite nonlocality using any
connected network.
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