Decoherence by Correlated Noise and Quantum Error Correction

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dc.creatorNovais, E.
dc.creatorBaranger, Harold U.
dc.date2005-08-30
dc.date2006-07-24
dc.date.accessioned2026-07-07T06:43:42Z
dc.date.available2026-07-07T06:43:42Z
dc.descriptionWe study the decoherence of a quantum computer in an environment which is inherently correlated in time and space. We first derive the nonunitary time evolution of the computer and environment in the presence of a stabilizer error correction code, providing a general way to quantify decoherence for a quantum computer. The general theory is then applied to the spin-boson model. Our results demonstrate that effects of long-range correlations can be systematically reduced by small changes in the error correction codes.
dc.description4 pages, 1 figure, Phys. Rev. Lett. in press
dc.identifierhttps://arxiv.org/abs/quant-ph/0508228
dc.identifierhttp://arxiv.org/abs/quant-ph/0508228
dc.identifierPhys. Rev. Lett. 97, 040501 (2006).
dc.identifierdoi:10.1103/PhysRevLett.97.040501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/102512
dc.subjectQuantum Physics
dc.subjectMesoscale and Nanoscale Physics
dc.titleDecoherence by Correlated Noise and Quantum Error Correction
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