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Machida, K; Nakazato, H; Pascazio, S; Rauch, H; Yu, S; Machida, K , Waseda Univ, Dept Phys, Tokyo 1698555, Japan.
Reflection and transmission in a neutron-spin test of the quantum Zeno effect
Source PublicationPHYSICAL REVIEW A
KeywordTime Evolution Paradox Systems Storage Decay
AbstractThe dynamics of a quantum system undergoing frequent "measurements," leading to the so-called quantum Zeno effect, is examined on the basis of a neutron-spin experiment recently proposed for its demonstration. Unlike in all previous studies, the spatial degrees of freedom of the neutron are duly taken into account. Their inclusion in the analysis is important for two reasons: first, neutron-reflection effects are shown to be very important; second, the evolution may rum out to be totally different from the ideal case. Our results can be interpreted in terms of a rigorous theorem due to Misra and Sudarshan: indeed we clarify that, in contrast with a widespread belief, a quantum Zeno effect does not halt the evolution of a quantum system; it rather modifies it, by forcing the system to remain in a certain subspace, defined by the very measurement performed. [S1050-2947(99)00811-2].
1999
ISSN1050-2947
Volume60Issue:5Pages:3448-3460
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13071
Collection理论物理所科研产出_SCI论文
Corresponding AuthorMachida, K , Waseda Univ, Dept Phys, Tokyo 1698555, Japan.
Recommended Citation
GB/T 7714
Machida, K,Nakazato, H,Pascazio, S,et al. Reflection and transmission in a neutron-spin test of the quantum Zeno effect[J]. PHYSICAL REVIEW A,1999,60(5):3448-3460.
APA Machida, K,Nakazato, H,Pascazio, S,Rauch, H,Yu, S,&Machida, K , Waseda Univ, Dept Phys, Tokyo 1698555, Japan..(1999).Reflection and transmission in a neutron-spin test of the quantum Zeno effect.PHYSICAL REVIEW A,60(5),3448-3460.
MLA Machida, K,et al."Reflection and transmission in a neutron-spin test of the quantum Zeno effect".PHYSICAL REVIEW A 60.5(1999):3448-3460.
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