Controlled Phase Flip Gate and Its Application in Low-Q Cavities by Single-Photon Input-Output Process

被引：1

作者：

Wang Bo ^{[1
]}

Chen Qiong ^{[2
,3
]}

Yang Wan-Li ^{[4
]}

Kou Su-Peng ^{[1
]}

机构：

[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

[2] Hunan Normal Univ, Minist Educ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Changsha 410081, Hunan, Peoples R China

[3] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China

[4] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2012年 / 58卷 / 02期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

conditional phase flip gate; faraday rotation; cluster states; QUANTUM STATE; ATOMIC-STATE; TELEPORTATION; ENTANGLEMENT;

D O I：

10.1088/0253-6102/58/2/10

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By employing an auxiliary cavity, we investigate the possibility to implement the conditional phase flip (CPF) gate on two atoms confined in separate low-Q cavities by single-photon input-output process, based on the Faraday rotation. This indicates a universal quantum computing available with sophisticated cavity QED techniques. As examples, we carry out generation of cluster states of distant atomic qubits and accomplish a teleportation based on Bell-state measurement in low-Q cavities.

引用

页码：225 / 228

页数：4

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