arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0910.0397cond-mat.dis-nncond-mat.stat-mech
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老化是近似均衡

Aging is - almost - like equilibrium

Alexandre Lefèvre

摘要:

我们研究和比较平衡和老化动力学的两侧的理想玻璃化转变温度$T_{MCT}$。在平均场模型的背景下,我们观察到,所有的动力学行为是由能量距离$ε$阈值-即边缘稳定-状态。我们还显示了惊人的结果,消除年龄和温度的好处$ε$,以上和以下的标度行为$T_{MCT}$是相同的,调和{ \it en passant}的平均场结果与实验观察。在附近的过渡,我们表明,有一个精确的映射之间的平衡动态和老化动态。这导致非常自然的解释和定量预测的老化动力学的几个显着特点:等待时间-温度叠加,中断老化,动态异质性。

英文摘要:

We study and compare equilibrium and aging dynamics on both sides of the ideal glass transition temperature $T_{MCT}$. In the context of a mean field model, we observe that all dynamical behaviors are determined by the energy distance $ε$ to threshold - i.e. marginally stable - states. We furthermore show the striking result that after eliminating age and temperature at the benefit of $ε$, the scaling behaviors above and below $T_{MCT}$ are identical, reconciling {\it en passant} the mean field results with experimental observations. In the vicinity of the transition, we show that there is an exact mapping between equilibrium dynamics and aging dynamics. This leads to very natural interpretations and quantitative predictions for several remarkable features of aging dynamics: waiting time-temperature superposition, interrupted aging, dynamical heterogeneity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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