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quant-ph1998★ 370 cited
Purification via entanglement swapping and conserved entanglement
S. Bose, V. Vedral, P. L. Knight
We investigate the purification of entangled states by local actions using a variant of entanglement swapping. We show that there exists a measure of entanglement which is conserve…
quant-ph1998★ 1 cited
Copying of entangled states and the degradation of correlations
Pawel Masiak, Peter L. Knight
We investigate the degree to which entanglement survives when a correlated pair of two-state systems are copied using either local or non-local processes. We show how the copying p…