Berry phase from a quantum Zeno effect

被引：37

作者：

Facchi, P ^{[1
]}

Klein, AG

Pascazio, S

Schulman, LS

机构：

[1] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy

[2] Ist Nazl Fis Nucl, Sezione Bari, I-70126 Bari, Italy

[3] Univ Melbourne, Sch Phys, Parkville, Vic 3052, Australia

[4] Clarkson Univ, Dept Phys, Potsdam, NY 13699 USA

[5] Technion Israel Inst Technol, Dept Phys, Haifa, Israel

来源：

PHYSICS LETTERS A | 1999年 / 257卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0375-9601(99)00323-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We exhibit a specific implementation of the creation of geometrical phase through the state-space evolution generated by the dynamic quantum Zeno effect. That is, a system is guided through a closed loop in Hilbert space by means a sequence of closely spaced projections leading to a phase difference with respect to the original state. Our goal is the proposal of a specific experimental setup in which this phase could be created and observed. To this end we study the case of neutron spin, examine the practical aspects of realizing the 'projections', and estimate the difference between the idealized projections and the experimental implementation. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：232 / 240

页数：9

共 37 条

[1] PHASE-CHANGE DURING A CYCLIC QUANTUM EVOLUTION [J].