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Entanglement Theory Quantum Correlations
An operational interpretation for multipartite entanglement
arXiv
Authors: Sergio Boixo, Alex Monras
Year
2007
Paper ID
49974
Status
Preprint
Abstract Read
~2 min
Abstract Words
77
Citations
N/A
Abstract
We introduce an operational interpretation for pure-state global multipartite entanglement based on quantum estimation. We show that the estimation of the strength of low-noise locally depolarizing channels, as quantified by the regularized quantum Fisher information, is directly related to the Meyer-Wallach multipartite entanglement measure. Using channels that depolarize across different partitions, we obtain related multipartite entanglement measures. We show that this measure is the sum of expectation values of local observables on two copies of the state.
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- This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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- We introduce an operational interpretation for pure-state global multipartite entanglement based on quantum estimation.
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