凝聚态物质驰豫：分维时间模型

Relaxation in Condensed Matter:Fractal Time Model

本文提出凝聚态物质驰豫的一个简单的分维时间模型，理论研究表明，凝聚态物质内的反常驰豫是由于绝热近似遭破坏的结果，且需要引入三个不同时间标度描述间断驰豫过程替代连续驰豫过程．本文提出模型不仅能很自然给出持续指数型驰豫ｅｘｐ［－（ｔ／τ）β］，而且能解释实验中观测到β的标度行为．

A simple fractal time model is presented for relaxation in condensed matter and theoretical investigation shows that the'anomalousx relaxation in condensed matter is the result of the breakdown of the adiabatic approximation and one needs three different time scales to describe an intermittent relaxation process instead of a continuous relaxation process.The present model can notonly give stretched exponential relaxation expL-(t/r) 6j naturally,but also explain the observedtime scaling behavior of g.