Keeping a quantum bit alive by optimized pi-pulse sequences.
نویسنده
چکیده
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.
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عنوان ژورنال:
- Physical review letters
دوره 98 10 شماره
صفحات -
تاریخ انتشار 2007