Statistical mechanics of helical wormlike chain model.
Statistical mechanics of helical wormlike chain model.
复制标题
螺旋蠕虫链模型的统计力学。
DOI：
10.1063/1.3548885
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
A. Green
中科院分区：
文献类型：
--
作者：
Ya Liu;Toni Pérez;Wei Li;J. Gunton;A. Green
本文研究了具有弯曲和扭转弹性的聚合物的统计力学问题。注意到能量函数是可因子分解的，我们提供了一个数值方法来解决模型使用的传递矩阵公式。切-切关联函数和双正-双正关联函数对温度和平衡挠率的组合非常敏感。它们的行为表明，在无序相和螺旋相之间不存在有限温度的Lifshitz点。对低温下的渐近行为进行了理论研究，预测结果与数值结果吻合得很好。我们的分析可用于理解双链DNA和其他手性聚合物的静态。
We investigate the statistical mechanics of polymers with bending and torsional elasticity described by the helical wormlike model. Noticing that the energy function is factorizable, we provide a numerical method to solve the model using a transfer matrix formulation. The tangent-tangent and binormal-binormal correlation functions have been calculated and displayed rich profiles which are sensitive to the combination of the temperature and the equilibrium torsion. Their behaviors indicate that there is no finite temperature Lifshitz point between the disordered and helical phases. The asymptotic behavior at low temperature has been investigated theoretically and the predictions fit the numerical results very well. Our analysis could be used to understand the statics of dsDNA and other chiral polymers.
镰状血红蛋白纤维因弯曲和扭曲的变化而产生各向异性。
DOI：
10.1016/j.jmb.2006.01.071
发表时间：
2006
期刊：
Journal of molecular biology.
影响因子：
--
作者：
Turner,MS;Briehl,RW;Wang,JC;Ferrone,FA;Josephs,R
通讯作者：
Josephs,R