摘要翻译：
采用数值模拟的方法研究了零温下二维模型颗粒材料的干扰转变输运行为。计算了软核作用下扩散运动颗粒的剪切粘度ETa与颗粒体积密度Rho和外加剪切应力σ的函数关系。我们发现我们的数据作为缩放变量\sigma/\rho_c-\rho^\delta的函数有很好的缩放折叠，其中\rho_c是\sigma=0（“点J”）处的临界密度，\delta是交叉缩放临界指数。我们的结果表明，干扰是一种真正的临界现象，它沿Rho-Sigma相图的非平衡Sigma轴扩展到驱动稳态。
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英文标题：
《Critical Scaling of Shear Viscosity at the Jamming Transition》
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作者：
Peter Olsson and S. Teitel
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最新提交年份：
2007
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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 carry out numerical simulations to study transport behavior about the jamming transition of a model granular material in two dimensions at zero temperature. Shear viscosity \eta is computed as a function of particle volume density \rho and applied shear stress \sigma, for diffusively moving particles with a soft core interaction. We find an excellent scaling collapse of our data as a function of the scaling variable \sigma/|\rho_c-\rho|^\Delta, where \rho_c is the critical density at \sigma=0 ("point J"), and \Delta is the crossover scaling critical exponent. Our results show that jamming is a true critical phenomenon, extending to driven steady states along the non-equilibrium \sigma axis of the \rho-\sigma phase diagram.
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PDF链接：
https://arxiv.org/pdf/704.1806