Optimization of a Neutron-Spin Test of the Quantum Zeno Effect

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dc.creatorFacchi, Paolo
dc.creatorNakaguro, Yoichi
dc.creatorNakazato, Hiromichi
dc.creatorPascazio, Saverio
dc.creatorUnoki, Makoto
dc.creatorYuasa, Kazuya
dc.date2003-01-15
dc.date.accessioned2026-07-07T06:05:53Z
dc.date.available2026-07-07T06:05:53Z
dc.descriptionA neutron-spin experimental test of the quantum Zeno effect (QZE) is discussed from a practical point of view, when the nonideal efficiency of the magnetic mirrors, used for filtering the spin state, is taken into account. In the idealized case the number N of (ideal) mirrors can be indefinitely increased, yielding an increasingly better QZE. By contrast, in a practical situation with imperfect mirrors, there is an optimal number of mirrors, N_opt, at which the QZE becomes maximum: more frequent measurements would deteriorate the performance. However, a quantitative analysis shows that a good experimental test of the QZE is still feasible. These conclusions are of general validity: in a realistic experiment, the presence of losses and imperfections leads to an optimal frequency N_opt, which is in general finite. One should not increase N beyond N_opt. A convenient formula for N_opt, valid in a broad framework, is derived as a function of the parameters characterizing the experimental setup.
dc.description8 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0301068
dc.identifierhttp://arxiv.org/abs/quant-ph/0301068
dc.identifierPhys. Rev. A 68 (2003) 012107
dc.identifierdoi:10.1103/PhysRevA.68.012107
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/90790
dc.subjectQuantum Physics
dc.titleOptimization of a Neutron-Spin Test of the Quantum Zeno Effect
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