Qubit Teleportation and Transfer across Antiferromagnetic Spin Chains

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dc.creatorVenuti, L. Campos
dc.creatorBoschi, C. Degli Esposti
dc.creatorRoncaglia, M.
dc.date2007-03-22
dc.date2007-04-04
dc.date.accessioned2026-07-07T08:23:50Z
dc.date.available2026-07-07T08:23:50Z
dc.descriptionWe explore the capability of spin-1/2 chains to act as quantum channels for both teleportation and transfer of qubits. Exploiting the emergence of long-distance entanglement in low-dimensional systems [Phys. Rev. Lett. 96, 247206 (2006)], here we show how to obtain high communication fidelities between distant parties. An investigation of protocols of teleportation and state transfer is presented, in the realistic situation where temperature is included. Basing our setup on antiferromagnetic rotationally invariant systems, both protocols are represented by pure depolarizing channels. We propose a scheme where channel fidelity close to one can be achieved on very long chains at moderately small temperature.
dc.description5 pages, 4 .eps figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0703202
dc.identifierhttp://arxiv.org/abs/quant-ph/0703202
dc.identifierPhys. Rev. Lett. 99, 060401 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.060401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/136140
dc.subjectQuantum Physics
dc.subjectStrongly Correlated Electrons
dc.titleQubit Teleportation and Transfer across Antiferromagnetic Spin Chains
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