在老化系统中的有效温度之间漫步:限制和前景
A stroll among effective temperatures in aging systems: limits and perspectives
摘要:
在本文中,我们提出了一个简短的调查有效温度的概念,在它的发病作为一个玻璃形成玻璃化,在文献中的各种定义和它们的适用性限制。采用一种精确可解的模型玻璃来比较它们之间的有效温度,并在非平衡老化系统的“双温度热力学”框架内为普遍额外温度的发生设定一个判据。这将表明,在玻璃成型机老化是不够的要求。例如,眼镜的典型记忆效应与唯一有效温度不兼容。然而,仍然可以确定和研究缩小的适用范围。
英文摘要:
In this paper we present a short survey on the concept of effective temperature, on its onset as a glass former vitrifies, on the various definitions in literature and their limits of applicability. An exactly solvable model glass is employed to compare effective temperatures among them and to set a criterion for the occurrence of a universal extra temperature in the framework of a "two temperature thermodynamics" for off-equilibrium aging systems. It will be shown that aging in glass formers is not a sufficient requirement. As an instance, memory effects typical of glasses are not compatible with a unique effective temperature. Yet, a reduced range of applicability can still be established and investigated.
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