比萨大学

报告摘要：

This remarkable universality has been brought out from experimental findings in inorganic, organic, polymeric, bio-molecular, colloidal, metallic, and ionically conducting systems with diverse chemical structures, and in various physical states including crystalline, glassy, liquid, molten, mixed, and hydrated, and with dimensions ranging from bulk to nano-meter size. The universal properties originate from the many-body nature of the irreversible processes, which are governed by some fundamental physics related to classical chaos originating from the anharmonic interaction potential. Recognition of the universality not only benefits research in many different fields, but also makes clear that many-body relaxation and diffusion in complex interacting systems is an important and unsolved problem in physics. Although it is neither a rigorous nor complete solution, the author's Coupling Model has given successful predictions about the universal properties of relaxation and diffusion, many of which are anomalous, in various different systems. It can be used as a stepping stone in the construction of a rigorous and fundamental theory to solve the problem, once and for all.

报告人简介：

Kia Ling Ngai，意大利比萨大学教授，1969年博士毕业于美国芝加哥大学。1969-1971年在麻省理工大学工作；1971-2010年在美国海军研究实验室工作；2010至今，在意大利比萨大学任科研教授，曾任10所国外高校的客座教授（马克思普朗克聚合物研究所，马克斯·普朗克复合系统研究所，东京工业大学与大阪大学等）。研究方向是复杂系统的弛豫行为，他是著名的国际学术会议“International Discussion Meeting on Relaxations in Complex Systems”的名誉主席。曾担任 Journal of Colloid and Polymer Science、J. Non-Cryst. Solids、 Philos. Mag.等期刊的副主编与特刊编辑，在玻璃材料的结构弛豫与二级弛豫的关系、结构弛豫和二级弛豫的高压动力学以及玻璃材料的稳定性方面取得了一系列成果。特别是他提出的耦合模型（Coupling Model）可用于解决复杂系统（如离子导体、聚合物、无定形玻璃、药物和蛋白质）中的多级弛豫和扩散问题。

邀请人：汪卫华

联系人：罗鹏

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