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arXiv quant-ph/0609203quant-phcond-mat.mes-hallcond-mat.stat-mechcond-mat.str-el
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利用优化的$π$脉冲序列保持量子比特的存活

Keeping a Quantum Bit Alive by Optimized $π$-Pulse Sequences

Götz S. Uhrig

摘要:

提出了一种保持量子比特相干性的一般策略。分析结果是严格推导出的,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卡尔-珀塞尔-梅布姆-吉尔(CPMG)周期。优化的序列是非常有效的,特别是对于与环境的强耦合。

英文摘要:

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

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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