利用Hadamard变换构建局域等价最大纠缠态

J4 ›› 2018, Vol. 35 ›› Issue (2): 179-183.

利用Hadamard变换构建局域等价最大纠缠态

黄海清¹,霍广文²

西京学院应用统计与理学系，陕西西安 710123

收稿日期:2016-12-15 修回日期:2017-07-11 出版日期:2018-03-28 发布日期:2018-03-30
通讯作者: 黄海清（1960-），女，陕西人，学士，副教授，主要从事光通信和量子光学的研究。 E-mail: huanghaiqing@xijing.edu.cn
基金资助:
Supported by Special Scientific Research Program of Shaanxi Provincial Educational Department(陕西省教育厅专项科研计划项目, 16JK2247）

Construct Local unitary equivalence maximally multiqubit entangled states via Hadamard matrix

HUANG Haiqing, HUO Guangwen

Department of Applied Statistics and Science, Xijing University, Xi’an 710123, China

Received:2016-12-15 Revised:2017-07-11 Published:2018-03-28 Online:2018-03-30

摘要/Abstract

摘要： 在量子纠缠中，态的演化是一个幺正演化过程，而局域幺正变换不改变体系的纠缠特性。基于Hadamard变换提出一种局域幺正变换方法，将Yeo和Chua提出的四粒子最大纠缠态及Borras等提出的六粒子纠缠态变换成纠缠特性完全相同的简单形式的四粒子和六粒子纠缠态，为实现制备及应用提供了理论依据。这些纠缠态具有更简单的表达式和特殊的纠缠特性，在量子隐形传态、量子密集编码、量子安全直接通信等方面有潜在应用前景。

关键词: 量子光学；最大纠缠态；量子Hadamard门；局域么正变换

Abstract: Construction of locally equivalent maximally entangled states using Hadamard transform

Key words: quantum optics; maximally entangled state; quantum Hadamard gate; local unitary transformation

黄海清霍广文. 利用Hadamard变换构建局域等价最大纠缠态[J]. J4, 2018, 35(2): 179-183.

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