Using continuous measurement to protect a universal set of quantum gates within a perturbed decoherence-free subspace

Simple item page
dc.creatorMendonca, Paulo E. M. F.
dc.creatorMarchiolli, Marcelo A.
dc.creatorNapolitano, Reginaldo d. J.
dc.date2005-01-12
dc.date.accessioned2026-07-07T09:23:08Z
dc.date.available2026-07-07T09:23:08Z
dc.descriptionWe consider a universal set of quantum gates encoded within a perturbed decoherence-free subspace of four physical qubits. Using second-order perturbation theory and a measuring device modeled by an infinite set of harmonic oscillators, simply coupled to the system, we show that continuous observation of the coupling agent induces inhibition of the decoherence due to spurious perturbations. We thus advance the idea of protecting or even creating a decoherence-free subspace for processing quantum information.
dc.description7 pages, 1 figure. To be published in Journal of Physics A: Mathematical and General
dc.identifierhttps://arxiv.org/abs/quant-ph/0501064
dc.identifierhttp://arxiv.org/abs/quant-ph/0501064
dc.identifierJ. Phys. A: Math. Gen. 38 (2005) L95-L102
dc.identifierdoi:10.1088/0305-4470/38/6/L04
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/155627
dc.subjectQuantum Physics
dc.titleUsing continuous measurement to protect a universal set of quantum gates within a perturbed decoherence-free subspace
dc.typetext

Files

Collections

arXiv