Separability and entanglement in 2xN composite quantum systems

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dc.creatorLewenstein, M.
dc.creatorCirac, J. I.
dc.creatorKarnas, S.
dc.date1999-03-03
dc.date.accessioned2026-07-07T06:16:16Z
dc.date.available2026-07-07T06:16:16Z
dc.descriptionWe show that all density operators of 2$\times N$--dimensional quantum systems that remain invariant after partial transposition with respect to the first system are separable. Based on this criterion, we derive a sufficient separability condition for general density operators in such quantum systems. We also give a simple proof of the separability criterion in $2\times 2$--dimensional systems [A. Peres, Phys. Rev. Lett {\bf 77}, 1413 (1996)]
dc.description4 pages, Latex
dc.identifierhttps://arxiv.org/abs/quant-ph/9903012
dc.identifierhttp://arxiv.org/abs/quant-ph/9903012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/94005
dc.subjectQuantum Physics
dc.titleSeparability and entanglement in 2xN composite quantum systems
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