Generating entangled states of two ququarts using linear optical elements

被引：13

作者：

Baek, So-Young ^{[1
]}

Kim, Yoon-Ho ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

来源：

PHYSICAL REVIEW A | 2007年 / 75卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.75.034309

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose linear optical schemes for generating entangled states of two ququarts (four-dimensional quantum systems) in which the single-ququart state is constructed with frequency-nondegenerate biphoton polarization states of spontaneous parametric down-conversion. We show explicitly that it is possible to generate various two-ququart entangled states by interfering two ququarts at a linear optical beam splitter (an ordinary 50-50 beam splitter, a polarizing beam splitter, or a dichroic beam splitter).

引用

页数：4

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