Alex Pozas-Kerstjens (@alexpozas.com)

Thanks to entanglement, the outcome of a joint measurement on multiple systems can be replicated even if the systems are far apart. This “localization” requires sharing some extra entanglement beforehand. Now researchers have determined how much of this shared entanglement is needed.

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Entanglement as the Currency of Quantum Measurement A powerful framework allows scientists to understand and classify joint quantum measurements—procedures essential for many quantum technologies. https://physics.aps.org/articles/v18/80