摘要翻译：
本文用计算机模拟和平均场理论证明了二维粒子系统在准一维通道内被一对平行硬壁横向约束时，具有许多在体中观察不到的反常的结构和力学性质。根据密度Rho和壁间距Ly的不同，体系表现出类似于弱调制液体、强调制近晶、三角形固体或屈曲相的结构特征。在$\Rho$固定时，$l_y$的变化导致许多重入的不连续跃迁，包括平行于限制壁的层数的变化，这主要取决于层间距与$l_y$的可公度性。固体表现出抗伸长性，但不抗剪切性。当应变超过弹性极限时，材料在发生塑性变形时失效，但令人惊讶的是，当应变逆转时，材料完全恢复并回到其原始未变形状态。我们从平均场理论和有限尺寸模拟中得到了相图，并讨论了涨落的影响。
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英文标题：
《Anomalous structural and mechanical properties of solids confined in
  quasi one dimensional strips》
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作者：
Debasish Chaudhuri, Surajit Sengupta
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最新提交年份：
2008
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分类信息：

一级分类：Physics        物理学
二级分类：Soft Condensed Matter        软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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一级分类：Physics        物理学
二级分类：Statistical Mechanics        统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
  We show using computer simulations and mean field theory that a system of particles in two dimensions, when confined laterally by a pair of parallel hard walls within a quasi one dimensional channel, possesses several anomalous structural and mechanical properties not observed in the bulk. Depending on the density $\rho$ and the distance between the walls $L_y$, the system shows structural characteristics analogous to a weakly modulated liquid, a strongly modulated smectic, a triangular solid or a buckled phase. At fixed $\rho$, a change in $L_y$ leads to many reentrant discontinuous transitions involving changes in the number of layers parallel to the confining walls depending crucially on the commensurability of inter-layer spacing with $L_y$. The solid shows resistance to elongation but not to shear. When strained beyond the elastic limit it fails undergoing plastic deformation but surprisingly, as the strain is reversed, the material recovers completely and returns to its original undeformed state. We obtain the phase diagram from mean field theory and finite size simulations and discuss the effect of fluctuations.
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PDF链接：
https://arxiv.org/pdf/705.3135