Test of Bell's inequality using the spin filter effect in ferromagnetic semiconductor microstructures

被引：87

作者：

Kawabata, S ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Nanotechnol Res Inst, Tsukuba, Ibaraki 3058568, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2001年 / 70卷 / 05期

关键词：

entanglement; Bell's inequality; ferromagnetic semiconductor; mesoscopic transport; local hidden variable theory;

D O I：

10.1143/JPSJ.70.1210

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A theoretical proposal for testing Bell's inequality in mesoscopic systems is presented. We show that the entanglement of two electron spins can be detected in the spin filter effect in the mesoscopic semiconductor / ferromagnetic semiconductor / semiconductor junction. In particular, we show how to test Bell's inequality via the measurement of the current-current correlation function in this setup. We also discuss the influence of an imperfect spin filter and derive the condition to examine the violation of Bell's inequality experimentally.

引用

页码：1210 / 1213

页数：4

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