Linear optical implementation of an ancilla-free quantum SWAP gate

被引：4

作者：

Wang, Hong-Fu ^{[1
,2
]}

Shao, Xiao-Qiang ^{[1
]}

Zhao, Yong-Fang ^{[1
]}

Zhang, Shou ^{[1
,2
]}

Yeon, Kyu-Hwang ^{[3
,4
]}

机构：

[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Dept Phys, Harbin 150001, Heilongjiang, Peoples R China

[2] Yanbian Univ, Dept Phys, Coll Sci, Yanji 133002, Jilin, Peoples R China

[3] Chungbuk Natl Univ, Dept Phys, Coll Nat Sci, Cheongju 361763, Chungbuk, South Korea

[4] Chungbuk Natl Univ, Program Device Phys BK21, Coll Nat Sci, Cheongju 361763, Chungbuk, South Korea

来源：

PHYSICA SCRIPTA | 2010年 / 81卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ENTANGLEMENT; COMPUTATION; SCHEME;

D O I：

10.1088/0031-8949/81/01/015011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a simple linear optical scheme for directly implementing an ancilla-free two-qubit quantum SWAP gate with high success probability. The proposed setup consists of only simple linear optical elements and photon detectors without introducing additionally ancillary single photons or entangled photons sources. The scheme is feasible and within the reach of current experimental technology.

引用

页数：4

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