Role of Three-Qubit Mixed-States Entanglement in Teleportation Scheme

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dc.creatorPark, DaeKil
dc.creatorTamaryan, Sayatnova
dc.creatorSon, Jin-Woo
dc.date2008-08-29
dc.date.accessioned2026-07-07T09:59:26Z
dc.date.available2026-07-07T09:59:26Z
dc.descriptionThe bipartite quantum teleportation with a three-qubit mixture of GHZ and W states as a quantum channel is discussed. When the quantum channel is a mixed state consisting of the GHZ state plus small perturbed W state, the entanglement of the channel becomes zero when the average fidelity $\bar{F}_{GHZ}$ is less than 0.775. This means that the mixed state cannot play an any role as a quantum channel at $\bar{F}_{GHZ} \leq 0.775$. For the case of the mixed state consisting of the W state plus small perturbed GHZ state it turn out that this mixed state cannot play a role as a quantum channel at $\bar{F}_W \leq 0.833$.
dc.description16 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0808.4045
dc.identifierhttp://arxiv.org/abs/0808.4045
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168022
dc.subjectQuantum Physics
dc.titleRole of Three-Qubit Mixed-States Entanglement in Teleportation Scheme
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