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arXiv 1805.09035cond-mat.stat-mech
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二维零温玻璃化转变

Zero-temperature glass transition in two dimensions

Ludovic Berthier, Patrick Charbonneau, Andrea Ninarello, Misaki Ozawa, Sho Yaida

摘要:

玻璃化转变的性质在理论上可以在无限空间维度的平均场极限下理解,但在物理维度上这个问题仍然是完全开放的。非平凡的有限维波动很难控制分析,实验未能提供有关玻璃化转变的性质确凿的证据。在这里,我们使用蒙特卡罗模拟,完全绕过玻璃化减速,并访问平衡态在二维玻璃形成液体在足够低的温度下直接探测过渡。我们发现,液态终止于零温度下的热力学玻璃化转变,这是与熵危机和发散的静态相关长度。

英文摘要:

The nature of the glass transition is theoretically understood in the mean-field limit of infinite spatial dimensions, but the problem remains totally open in physical dimensions. Nontrivial finite-dimensional fluctuations are hard to control analytically, and experiments fail to provide conclusive evidence regarding the nature of the glass transition. Here, we use Monte Carlo simulations that fully bypass the glassy slowdown, and access equilibrium states in two-dimensional glass-forming liquids at low enough temperatures to directly probe the transition. We find that the liquid state terminates at a thermodynamic glass transition at zero temperature, which is associated with an entropy crisis and a diverging static correlation length.

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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