Quantum iSWAP gate in optical cavities with a cyclic three-level system

被引：6

作者：

Yan, Guo-an ^{[1
,2
]}

Qiao, Hao-xue ^{[1
]}

Lu, Hua ^{[3
,4
]}

机构：

[1] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China

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

[3] Hubei Univ Technol, Sch Sci, Wuhan 430068, Hubei, Peoples R China

[4] Univ Sci & Technol China, Chinese Acad Sci, Key Lab Quantum Informat, Hefei 230026, Anhui, Peoples R China

来源：

QUANTUM INFORMATION PROCESSING | 2018年 / 17卷 / 04期

基金：

中国国家自然科学基金;

关键词：

iSWAP gate; Cavity quantum electrodynamics; Spontaneous emission; ENTANGLEMENT; COMPUTATION; DYNAMICS; SCHEME; STATE;

D O I：

10.1007/s11128-018-1836-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper we present a scheme to directly implement the iSWAP gate by passing a cyclic three-level system across a two-mode cavity quantum electrodynamics. In the scheme, a three-level Delta-type atom ensemble prepared in its ground state mediates the interaction between the two-cavity modes. For this theoretical model, we also analyze its performance under practical noise, including spontaneous emission and the decay of the cavity modes. It is shown that our scheme may have a high fidelity under the practical noise.

引用

页数：10

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