Nonmonotonous temperature dependence of the initial decoherence in quantum dots
Nonmonotonous temperature dependence of the initial decoherence in quantum dots
复制标题
量子点中初始退相干的非单调温度依赖性
DOI：
10.1103/physrevb.70.201305
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发表时间：
2004
影响因子：
3.7
通讯作者：
U. Woggon
中科院分区：
文献类型：
--
作者：
A. Vagov;V. M. Axt;T. Kuhn;W. Langbein;P. Borri;U. Woggon
通过四波混频实验和理论比较，分析了强约束半导体量子点的初始退相干特性。测量结果与声学声子引起的纯失相分析结果在定量上一致。实验证实了最近关于初始退相干时间的异常非单调温度依赖的预测。
We have analyzed the initial decoherence of strongly confined semiconductor quantum dots by performing four-wave-mixing experiments and comparing with theory. The measurements are in quantitative agreement with analytical results accounting for the pure dephasing induced by acoustic phonons. The experiments confirm the recent prediction of an unusual nonmonotonous temperature dependence of the initial decoherence time.