Purification through Zeno-like measurements

被引：92

作者：

Nakazato, H ^{[1
]}

Takazawa, T ^{[1
]}

Yuasa, K ^{[1
]}

机构：

[1] Waseda Univ, Dept Phys, Tokyo 1698555, Japan

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.90.060401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A series of frequent measurements on a quantum system (Zeno-like measurements) is shown to result in the "purification" of another quantum system in interaction with the former. Even though the measurements are performed on the former system, their effect drives the latter into a pure state, irrespectively of its initial (mixed) state, provided certain conditions are satisfied.

引用

页数：4

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