Quantum Nondemolition Monitoring of Universal Quantum Computers

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dc.creatorOzawa, Masanao
dc.date1997-04-15
dc.date1997-11-18
dc.date.accessioned2026-07-07T12:33:22Z
dc.date.available2026-07-07T12:33:22Z
dc.descriptionThe halt scheme for quantum Turing machines, originally proposed by Deutsch, is reformulated precisely and is proved to work without spoiling the computation. The ``conflict'' pointed out recently by Myers in the definition of a universal quantum computer is shown to be only apparent. In the context of quantum nondemolition (QND) measurement, it is also shown that the output observable, an observable representing the output of the computation, is a QND observable and that the halt scheme is equivalent to the QND monitoring of the output observable.
dc.description5 pages, RevTeX, no figures, revised, to appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/quant-ph/9704028
dc.identifierhttp://arxiv.org/abs/quant-ph/9704028
dc.identifierPhys.Rev.Lett.80:631,1998
dc.identifierdoi:10.1103/PhysRevLett.80.631
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217101
dc.subjectQuantum Physics
dc.titleQuantum Nondemolition Monitoring of Universal Quantum Computers
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