Stabilisation of Quantum Computations by Symmetrisation

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dc.creatorBarenco, Adriano
dc.creatorBerthiaume, Andre`
dc.creatorDeutsch, David
dc.creatorEkert, Artur
dc.creatorJozsa, Richard
dc.creatorMacchiavello, Chiara
dc.date1996-04-25
dc.date.accessioned2026-07-07T06:13:49Z
dc.date.available2026-07-07T06:13:49Z
dc.descriptionWe propose a method for the stabilisation of quantum computations (including quantum state storage). The method is based on the operation of projection into $\cal SYM$, the symmetric subspace of the full state space of $R$ redundant copies of the computer. We describe an efficient algorithm and quantum network effecting $\cal SYM$--projection and discuss the stabilising effect of the proposed method in the context of unitary errors generated by hardware imprecision, and nonunitary errors arising from external environmental interaction. Finally, limitations of the method are discussed.
dc.description20 pages LaTeX, 2 postscript figures
dc.identifierhttps://arxiv.org/abs/quant-ph/9604028
dc.identifierhttp://arxiv.org/abs/quant-ph/9604028
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/93239
dc.subjectQuantum Physics
dc.titleStabilisation of Quantum Computations by Symmetrisation
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