Violation of local uncertainty relations as a signature of entanglement

被引：342

作者：

Hofmann, HF ^{[1
]}

Takeuchi, S ^{[1
]}

机构：

[1] Hokkaido Univ, Res Inst Elect Sci, Japan Sci & Technol Corp, PRESTO,Kita Ku, Sapporo, Hokkaido 0600812, Japan

来源：

PHYSICAL REVIEW A | 2003年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.68.032103

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Entangled states represent correlations between two separate systems that are too precise to be represented by products of local quantum states. We show that this limit of precision for the local quantum states of a pair of N-level systems can be defined by an appropriate class of uncertainty relations. The violation of such local uncertainty relations may be used as an experimental test of entanglement generation.

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页数：6

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