论文标题

零温度下的超级传统系统

Ultrasoft classical systems at zero temperature

论文作者

de Mello, Matheus, Díaz-Méndez, Rogelio, Mendoza-Coto, Alejandro

论文摘要

在低温下,Ultrasoft粒子系统通过粒子簇的自组装发展了有趣的阶段。在这项研究中,我们开发了一个一般的零温度分析,以两个和三个维度的基础状态充分表征了这种模型的基态,考虑到经典系统,限制了每个群集恒定数量的粒子。我们表明,这种方法允许确切地预测不同阶段的实际密度值,包括不均匀的聚类占用区域,这些区域被研究为两个纯相的共存区域。除了旨在从一般超速电位产生精确相图的方法本身之外,我们还可以在较大的占用限制下达到不同阶段的能量和位置的分析表达式。

At low temperatures ultrasoft particle systems develop interesting phases via the self-assembly of particle clusters. In this study we develop a general zero-temperature analysis fully characterizing the ground state of such models in two and three dimensions, considering the classical system with the restriction of a constant integer number of particles per cluster. We show that this methodology allows for an exact prediction of the actual density values at which the different phases emerge, including the zones of uneven cluster occupation, which are studied as coexistence regions of two pure phases. Beyond the method itself, designed to produce exact phase diagrams from general ultrasoft potentials, we reach analytical expressions for the energy and location of the different phases in the large occupancy limit.

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