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28 March 2024
 
  » pubmed » pmid12484922

 Article overview


Polarization entanglement purification using spatial entanglement
Christoph Simon ; Jian-Wei Pan ;
Date 16 Dec 2002
Journal Phys Rev Lett, 89 (25), 257901
AbstractWe present a scheme for entanglement purification with linear optics that works for currently available parametric down-conversion sources, in contrast to a previous scheme [J. W. Pan, Nature (London) 410, 1067 (2001)]] that relied on ideal single-pair sources. The present scheme makes use of spatial entanglement in order to purify polarization entanglement. Surprisingly, spatial entanglement as an additional resource also leads to a substantial improvement in entanglement output compared to the previous scheme.
Source PubMed, pmid12484922
Other source [GID 289713] quant-ph/0108063
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