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Purification via entanglement swapping and conserved entanglement

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arxiv quant-ph/9812013 v2 pith:XL5EURLW submitted 1998-12-06 quant-ph

Purification via entanglement swapping and conserved entanglement

classification quant-ph
keywords entanglementpurificationconservedswappingactionsentangledexistsinvestigate
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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 conserved in this type of purification procedure.

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