Entanglement may enhance the channel capacity in arbitrary dimensions

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dc.creatorKarpov, E.
dc.creatorDaems, D.
dc.creatorCerf, N. J.
dc.date2006-12-28
dc.date.accessioned2026-07-07T07:40:44Z
dc.date.available2026-07-07T07:40:44Z
dc.descriptionWe consider explicitly two examples of d-dimensional quantum channels with correlated noise and show that, in agreement with previous results on Pauli qubit channels, there are situations where maximally entangled input states achieve higher values of the output mutual information than product states. We obtain a strong dependence of this effect on the nature of the noise correlations as well as on the parity of the space dimension, and conjecture that when entanglement gives an advantage in terms of mutual information, maximally entangled states achieve the channel capacity.
dc.description12 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0612219
dc.identifierhttp://arxiv.org/abs/quant-ph/0612219
dc.identifierOpen Sys. & Information Dyn. 13, 363 (2006)
dc.identifierdoi:10.1007/s11080-006-9018-y
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121865
dc.subjectQuantum Physics
dc.titleEntanglement may enhance the channel capacity in arbitrary dimensions
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