NONLINEAR DECOHERENCE IN QUANTUM STATE PREPARATION OF A TRAPPED ION
NONLINEAR DECOHERENCE IN QUANTUM STATE PREPARATION OF A TRAPPED ION
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DOI：
10.1103/physreva.60.3815
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发表时间：
1999-11
影响因子：
2.9
通讯作者：
L. Kuang;H. Zeng;Zhao-yang Tong
中科院分区：
文献类型：
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作者：
L. Kuang;H. Zeng;Zhao-yang Tong
提出了一个非线性退相干模型，该模型通过系统与环境之间的非线性耦合来模拟量子系统中各种退相干源引起的退相干效应，并将其应用于研究单个囚禁离子非经典运动态的退相干.我们得到了该模型的精确解析解，并对Meekhof等人在NIST实验中观察到的单个囚禁离子的布居衰变率进行了计算，结果与实验结果非常吻合[D. M. Meekhof等人，物理修订信函76，1796（1996）]。
We present a nonlinear decoherence model which models decoherence effects caused by various decohering sources in a quantum system through a nonlinear coupling between the system and its environment, and apply it to investigating decoherence in nonclassical motional states of a single trapped ion. We obtain an exactly analytic solution of the model and find very good agreement with experimental results for the population decay rate of a single trapped ion observed in the NIST experiments by Meekhof and co-workers [D. M. Meekhof et al., Phys. Rev. Lett. 76, 1796 (1996)].