Experimental implementation of a concatenated quantum error-correcting code

被引:40
|
作者
Boulant, N [1 ]
Viola, L
Fortunato, EM
Cory, DG
机构
[1] MIT, Dept Nucl Engn, Cambridge, MA 02139 USA
[2] Dartmouth Coll, Dept Phys & Astron, Wilder Lab 6127, Hanover, NH 03755 USA
关键词
D O I
10.1103/PhysRevLett.94.130501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Concatenated coding provides a general strategy to achieve the desired level of noise protection in quantum information processing. We report the implementation of a concatenated quantum error-correcting code able to correct phase errors with a strong correlated component. The experiment was performed using liquid-state nuclear magnetic resonance techniques on a four spin subsystem of labeled crotonic acid. Our results show that concatenation between active and passive quantum error correction is a practical tool to handle realistic noise involving both independent and correlated errors.
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页数:4
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