Local Invariants and Pairwise Entanglement in Symmetric Multi-qubit System

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dc.creatorDevi, A. R. Usha
dc.creatorUma, M. S.
dc.creatorPrabhu, R.
dc.creatorSudha
dc.date2005-09-08
dc.date2006-06-23
dc.date.accessioned2026-07-07T06:43:43Z
dc.date.available2026-07-07T06:43:43Z
dc.descriptionPairwise entanglement properties of a symmetric multi-qubit system are analyzed through a complete set of two-qubit local invariants. Collective features of entanglement, such as spin squeezing, are expressed in terms of invariants and a classifcation scheme for pairwise entanglement is proposed. The invariant criteria given here are shown to be related to the recently proposed (Phys. Rev. Lett. 95, 120502 (2005)) generalized spin squeezing inequalities for pairwise entanglement in symmetric multi-qubit states.
dc.description9 pages, 2 figures, REVTEX, Replaced with a published version
dc.identifierhttps://arxiv.org/abs/quant-ph/0509056
dc.identifierhttp://arxiv.org/abs/quant-ph/0509056
dc.identifierInt. J. Mod. Phys. B, Vol. 20, (2006) 1917-1933
dc.identifierdoi:10.1142/S0217979206034406
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102520
dc.subjectQuantum Physics
dc.titleLocal Invariants and Pairwise Entanglement in Symmetric Multi-qubit System
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