From quantum feedback to probabilistic error correction: manipulation of quantum beats in cavity QED

被引：8

作者：

Barberis-Blostein, P. ^{[3
]}

Norris, D. G. ^{[1
,2
]}

Orozco, L. A. ^{[1
,2
]}

Carmichael, H. J. ^{[1
,2
,4
]}

机构：

[1] Univ Maryland, Dept Phys, Joint Quantum Inst, College Pk, MD 20742 USA

[2] Natl Inst Stand & Technol, College Pk, MD 20742 USA

[3] Univ Nacl Autonoma Mexico, Inst Invest Matemat Aplicadas & Sistemas, Mexico City 04510, DF, Mexico

[4] Univ Auckland, Dept Phys, Auckland, New Zealand

来源：

NEW JOURNAL OF PHYSICS | 2010年 / 12卷

基金：

美国国家科学基金会;

关键词：

SPONTANEOUS EMISSION; COHERENCE; ATOMS;

D O I：

10.1088/1367-2630/12/2/023002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown how one can implement quantum feedback and probabilistic error correction in an open quantum system consisting of a single atom, with ground- and excited-state Zeeman structure, in a driven two-mode optical cavity. The ground-state superposition is manipulated and controlled through conditional measurements and external fields, which shield the coherence and correct quantum errors. Modeling an experimentally realistic situation demonstrates the robustness of the proposal for realization in the laboratory.

引用

页数：13

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