Fluctuation-dissipation relations in the activated regime of simple strong-glass models.
Fluctuation-dissipation relations in the activated regime of simple strong-glass models.
复制标题
简单强玻璃模型激活状态中的涨落-耗散关系。
DOI：
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发表时间：
2001
影响因子：
8.6
通讯作者：
J. P. Garrahan
中科院分区：
文献类型：
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作者：
A. Buhot;J. P. Garrahan
我们研究了两个具有强玻璃行为的简单模型，Fredrickson-Andersen模型和Square-Plaquette相互作用模型的低温，有限的时间衰老状态的平衡外波动 - 散落（FD）关系。我们明确显示了独特的，等待时间独立的动力FD关系的存在。虽然在弗雷德里克森·安德森（Fredrickson-Andersen）模型中，FD定理始终遵守FD定理，但Plaquette模型显示了分段线性的FD关系，类似于无序的平均场模型中发现的和超冷液体的模拟中发现的事实，并且它的事实是静态特性是微不足道的。我们讨论这些结果的更广泛含义。
We study the out-of-equilibrium fluctuation-dissipation (FD) relations in the low-temperature, finite-time, physical-aging regime of two simple models with strong glass behavior, the Fredrickson-Andersen model and the square-plaquette interaction model. We explicitly show the existence of unique, waiting-time independent dynamical FD relations. While in the Fredrickson-Andersen model the FD theorem is obeyed at all times, the plaquette model displays piecewise-linear FD relations, similar to what is found in disordered mean-field models and in simulations of supercooled liquids, and despite the fact that its static properties are trivial. We discuss the wider implications of these results.