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arXiv 2602.13664cond-mat.stat-mech
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介观MCT理论解决巨非高斯参数和弗洛伊 conjecture

Mesoscopic MCT theory resolves Giant Non-Gaussian Parameter and Flory's conjecture

School of Materials Science and Engineering, Jiujiang University(九江大学材料科学与工程学院);BYD Company Limited(比亚迪股份有限公司)

Yikun Ren, Feixiang Xu, Ming Lin

AI总结:

介观MCT理论通过引入非平衡本相,解决了玻璃转变中巨非高斯参数和WLF常数的长期谜题,建立了非平衡热力学的可测量基础。

摘要:

将普里戈金的想法扩展到系统内部,我们通过引入非平衡本相来将模式耦合理论从微观扩展到介观 formulation。所得到的框架用误差小于0.01的精度解决了玻璃转变物理中两个长期存在的谜题:(i) 巨非高斯参数α₂≈1-10,比标准MCT预测(仅0.1)大两个数量级;(ii) 通用WLF常数C₁=17 ln 10/(3√42-19)≈16.7,经经验观察七十年但从未从第一原理推导出来(例如,Adam-Gibbs C₁=8.5,而其他理论误差超过两倍)。这些结果确立了介观MCT作为非平衡热力学的可测量基础,统一了玻璃形成系统中的动态异质性和热力学普遍性。

英文摘要:

Extending Prigogine's ideas to the interior of the system, we generalize mode-coupling theory from a microscopic to a mesoscopic formulation by incorporating the non-equilibrium eigen-phase. The resulting framework resolves two long-standing puzzles in glass transition physics with an error less than 0.01 against experiments: (i) the giant non-Gaussian parameter $α_{2} \sim 1-10$ which exceeds standard MCT predictions (only 0.1) by two orders of magnitude; (ii) the universal WLF constant $C_{1}=17 \ln 10 /(3 \sqrt{42}-19) \approx 16.7$, empirically observed for seven decades but never derived from first principles(e.g. Adam-Gibbs $C_{1}=8.5$, while other theories are off by more than a factor of two). These results establish mesoscopic MCT as a measurable foundation for non-equilibrium thermodynamics, unifying dynamic heterogeneity and thermodynamic universality in glass-forming systems.

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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