利用Loschmann回波探测吸收系统中的定位
Probing Localization in Absorbing Systems via Loschmidt Echos
摘要：
我们测量安德森局域化在准一维波导中的吸收的存在下，通过分析由于小扰动的回波动力学。我们特别表明，本地化模式的参与数的倒数决定的Loschillo回波的衰减，不同的高斯衰减预期的扩散或混沌系统。我们的理论，基于随机矩阵建模，完全同意与散射回波测量上的准一维微波腔填充随机分布的散射体。
英文摘要：
We measure Anderson localization in quasi-one-dimensional waveguides in the presence of absorption by analyzing the echo dynamics due to small perturbations. We specifically show that the inverse participation number of localized modes dictates the decay of the Loschmidt echo, differing from the Gaussian decay expected for diffusive or chaotic systems. Our theory, based on a random matrix modeling, agrees perfectly with scattering echo measurements on a quasi one-dimensional microwave cavity filled with randomly distributed scatterers.
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