Keeping a quantum bit alive by optimized π-pulse sequences
Keeping a quantum bit alive by optimized π-pulse sequences
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DOI：
10.1103/physrevlett.98.100504
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发表时间：
2007-03-09
影响因子：
8.6
通讯作者：
Uhrig, Goetz S.
中科院分区：
文献类型：
--
作者：
Uhrig, Goetz S.
提出了一种保持量子比特相干性的一般策略。分析结果严格推导出包括所有的记忆和反作用效应。它是基于一个优化的π脉冲序列的动态解耦扩展的Carr-Purcell-Meiboom-Gill循环。优化的序列是非常有效的，特别是对于与环境的强耦合。
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.