All-Optical Quantum Information Processing Using Rydberg Gates

被引：117

作者：

Paredes-Barato, D. ^{[1
]}

Adams, C. S. ^{[1
]}

机构：

[1] Univ Durham, Dept Phys, Joint Quantum Ctr JQC Durham Newcastle, Durham DH1 3LE, England

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

ENTANGLEMENT; PHOTONS;

D O I：

10.1103/PhysRevLett.112.040501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this Letter, we propose a hybrid scheme to implement a photonic controlled-z (CZ) gate using photon storage in highly excited Rydberg states, which controls the effective photon-photon interaction using resonant microwave fields. Our scheme decouples the light propagation from the interaction and exploits the spatial properties of the dipole blockade phenomenon to realize a CZ gate with minimal loss and mode distortion. By excluding the coupling efficiency, fidelities exceeding 95% are achievable and are found to be mainly limited by motional dephasing and the finite lifetime of the Rydberg levels.

引用

页数：5

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