摘要翻译：
本文研究了在不同温度下具有现场钉扎和端部连接随机热库的经典一维无序链中的热流J。在不存在非谐的情况下，所有的模都是局域的，并且在频谱中存在一个间隙。因此，J随系统尺寸N呈指数衰减。通过模拟我们发现，即使是少量的非谐性也会导致J1/N依赖关系，这意味着能量的扩散输运。
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英文标题：
《Effect of phonon-phonon interactions on localization》
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作者：
Abhishek Dhar and J. L. Lebowitz
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最新提交年份：
2008
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分类信息：

一级分类：Physics        物理学
二级分类：Disordered Systems and Neural Networks        无序系统与神经网络
分类描述：Glasses and spin glasses; properties of random, aperiodic and quasiperiodic systems; transport in disordered media; localization; phenomena mediated by defects and disorder; neural networks
眼镜和旋转眼镜；随机、非周期和准周期系统的性质；无序介质中的传输；本地化；由缺陷和无序介导的现象；神经网络
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一级分类：Physics        物理学
二级分类：Statistical Mechanics        统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
  We study the heat current J in a classical one-dimensional disordered chain with on-site pinning and with ends connected to stochastic thermal reservoirs at different temperatures. In the absence of anharmonicity all modes are localized and there is a gap in the spectrum. Consequently J decays exponentially with system size N. Using simulations we find that even a small amount of anharmonicity leads to a J~1/N dependence, implying diffusive transport of energy.
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PDF链接：
https://arxiv.org/pdf/708.4171