Demonstration of quantum error correction using linear optics

被引:60
作者
Pittman, TB [1 ]
Jacobs, BC [1 ]
Franson, JD [1 ]
机构
[1] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA
来源
PHYSICAL REVIEW A | 2005年 / 71卷 / 05期
关键词
D O I
10.1103/PhysRevA.71.052332
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a laboratory demonstration of a quantum error correction procedure that can correct intrinsic measurement errors in linear-optics quantum gates. The procedure involves a two-qubit encoding and fast feed-forward-controlled single-qubit operations. In our demonstration the qubits were represented by the polarization states of two single-photons from a parametric down-conversion source, and the real-time feed-forward control was implemented using an electro-optic device triggered by the output of single-photon detectors.
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页数:4
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