Universal impedance fluctuations in wave chaotic systems
Universal impedance fluctuations in wave chaotic systems
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DOI：
10.1103/physrevlett.94.014102
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发表时间：
2005-01-14
影响因子：
8.6
通讯作者：
Anlage, SM
中科院分区：
文献类型：
--
作者：
Hemmady, S;Zheng, X;Anlage, SM
利用微波模拟的量子混沌无限方阱势，对波混沌系统中普适阻抗涨落的理论预测进行了实验研究。我们强调使用的辐射阻抗，以消除外部世界和散射体之间的特定耦合的非普适效应。我们测试的具体预测包括通用阻抗的真实的和虚部的概率密度函数（PDF），这些PDF的方差的相等性，以及这些PDF对单个损耗参数的依赖性。
We experimentally investigate theoretical predictions of universal impedance fluctuations in wave chaotic systems using a microwave analog of a quantum chaotic infinite square well potential. We emphasize the use of the radiation impedance to remove the nonuniversal effects of the particular coupling between the outside world and the scatterer. Specific predictions that we test include the probability density functions (PDFs) of the real and imaginary parts of the universal impedance, the equality of the variances of these PDFs, and the dependence of these PDFs on a single loss parameter.