Keeping a quantum bit alive by optimized π-pulse sequences

被引：591

作者：

Uhrig, Goetz S. ^{[1
]}

机构：

[1] Univ Dortmund, Lehrstuhl Theoret Phys 1, D-44221 Dortmund, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.98.100504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A general strategy to maintain the coherence of a quantum bit is proposed. The analytical result is derived rigorously including all memory and backaction effects. It is based on an optimized pi-pulse sequence for dynamic decoupling extending the Carr-Purcell-Meiboom-Gill cycle. The optimized sequence is very efficient, in particular, for strong couplings to the environment.

引用

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