Spin squeezing criterion with local unitary invariance

Simple item page
dc.creatorDevi, A. R. Usha
dc.creatorWang, Xiaoguang
dc.creatorSanders, Barry C
dc.date2003-04-07
dc.date2003-06-30
dc.date.accessioned2026-07-07T06:06:32Z
dc.date.available2026-07-07T06:06:32Z
dc.descriptionWe propose a new spin squeezing criterion for arbitrary multi-qubit states that is invariant under local unitary operations. We find that, for arbitrary pure two-qubit states, spin squeezing is equivalent to entanglement, and multi-qubit states are entangled if this new spin squeezing parameter is less than 1.
dc.description6 pages. Version 3: Small corrections
dc.identifierhttps://arxiv.org/abs/quant-ph/0304051
dc.identifierhttp://arxiv.org/abs/quant-ph/0304051
dc.identifierQuantum Information Processing 2 (3), 207-220 (2003).
dc.identifierdoi:10.1023/B:QINP.0000004125.12489.f4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91005
dc.subjectQuantum Physics
dc.titleSpin squeezing criterion with local unitary invariance
dc.typetext

Files

Collections

arXiv