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Zeno dynamics yields ordinary constraints

被引：66
作者：
Facchi, P
Pascazio, S
Scardicchio, A
Schulman, LS
机构：
[1] Univ Vienna, Atominst, A-1020 Vienna, Austria
[2] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy
[3] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[4] Clarkson Univ, Dept Phys, Potsdam, NY 13699 USA
来源：
PHYSICAL REVIEW A | 2002年 / 65卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.65.012108
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The dynamics of a quantum system undergoing frequent measurements (quantum Zeno effect) is investigated. Using asymptotic analysis, the system is found to evolve unitarily in a proper subspace of the total Hilbert space. For measurements represented by spatial projections, the generator of the "Zeno dynamics" is the Hamiltonian with Dirichlet boundary conditions.
引用
收藏
页码：121081 / 121085
页数：5
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