Why is the density of inherent structures of a Lennard-Jones-type system Gaussian?

被引:55
作者
Heuer, A
Büchner, S
机构
[1] Max Planck Inst Polymerforsch, D-55128 Mainz, Germany
[2] Univ Munster, Inst Phys Chem, D-48149 Munster, Germany
关键词
D O I
10.1088/0953-8984/12/29/325
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The thermodynamics of glass-forming systems can be expressed in terms of the density of inherent structures, which correspond to the minima of the potential energy landscape. In previous work this approach has been applied to Lennard-Jones-type systems, yielding a density of inherent structures which to a very good approximation turned out to be Gaussian. In this work we clarify whether the Gaussian distribution is just a consequence of the central-limit theorem or whether it also contains information about the local structure of the glass-forming system.
引用
收藏
页码:6535 / 6541
页数:7
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