Single spin measurement using cellular automata techniques.
Single spin measurement using cellular automata techniques.
复制标题
使用元胞自动机技术进行单自旋测量。
DOI：
10.1103/physrevlett.97.100501
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发表时间：
2006
影响因子：
8.6
通讯作者：
D. Cory
中科院分区：
文献类型：
--
作者：
Carlos A. Pérez;M. Mosca;P. Cappellaro;D. Cory
我们分析了单自旋测量的概念方法。该方法使用量子细胞自动机理论中的技术，将大量辅助自旋与待测量的自旋相关联。它有一个明显的优点是高效的：在理想条件下，它只需要O（（3）平方根N）个步骤（每个步骤需要恒定数量的射频脉冲）来创建一个N个相关自旋的系统。数值模拟表明，它也是，在一定程度上，对脉冲误差，和不完美的初始极化的辅助自旋系统的鲁棒性。
We analyze a conceptual approach to single-spin measurement. The method uses techniques from the theory of quantum cellular automata to correlate a large number of ancillary spins to the one to be measured. It has the distinct advantage of being efficient: under ideal conditions, it requires the application of only O((3)square root N)) steps (each requiring a constant number of rf pulses) to create a system of N correlated spins. Numerical simulations suggest that it is also, to a certain extent, robust against pulse errors, and imperfect initial polarization of the ancilla spin system.