结晶聚乙烯中的精确拓扑扭转
Exact Topological Twistons in Crystalline Polyethylene
摘要：
我们研究了结晶聚乙烯中拓扑扭曲的存在。我们描述结晶聚乙烯的模型，耦合的扭转和纵向自由度的聚合物链的两个真正的标量场的系统的装置。该模型支持拓扑扭曲，这是描述的精确和稳定的拓扑解决方案时出现的扭转和纵向字段之间的相互作用是多项式，包含高达六次幂的字段。我们计算了拓扑扭曲的能量，结果与分子模拟的结果吻合得很好。
英文摘要：
We investigate the presence of topological twistons in crystalline polyethylene. We describe crystalline polyethylene with a model that couples the torsional and longitudinal degrees of freedom of the polymeric chain by means of a system of two real scalar fields. This model supports topological twistons, which are described by exact and stable topological solutions that appear when the interaction between torsional and longitudinal fields is polynomial, containing up to the sixth power in the fields. We calculate the energy of the topological twiston, and the result is in very good agreement with the value obtained via molecular simulation.
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