摘要翻译:
我们研究了在外力作用下单聚合物链的展开。我们使用了一个简化的模型,它允许以封闭的形式进行所有的计算,而不假设平衡分布的玻尔兹曼-吉布斯形式。在一定的约束条件下,通过计算熵的勒让德变换来定义温度。模型的应用仅限于柔性聚合物。它呈现出从致密的球状逐渐向棒状转变的过程。这两个阶段之间的边界线表现为重入行为。这种行为可以用剩余熵的存在来解释。
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英文标题:
《Residual entropy in a model for the unfolding of single polymer chains》
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作者:
Erik Van der Straeten, Jan Naudts
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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: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 study the unfolding of a single polymer chain due to an external force. We use a simplified model which allows to perform all calculations in closed form without assuming a Boltzmann-Gibbs form for the equilibrium distribution. Temperature is then defined by calculating the Legendre transform of the entropy under certain constraints. The application of the model is limited to flexible polymers. It exhibits a gradual transition from compact globule to rod. The boundary line between these two phases shows reentrant behavior. This behavior is explained by the presence of residual entropy.
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PDF链接:
https://arxiv.org/pdf/704.1233