Effect of Temperature on Polaron Stability in a One-Dimensional Organic Lattice

Effect of temperature on the polaron stability in a one-dimensional organic lattice is investigated within the Su-Schrieffer-Heeger model. The temperature effect is simulated by introducing random forces to the equation of the lattice motion. It is found that the localized polaron state becomes delocalized even at low temperatures. The time of polaron keeping localized depends on the magnitude of temperatures. By taking into account the thermal effect, we find that the dissociation field is weaker as compared with earlier works.     

大学物理课程思政教学评价初探

大学物理课程思政是一种隐性的思想政治教育，对其进行教学效果评价研究是目前教学工作中需要解决的问题。本文采用调查问卷进行课程思政教学评价研究，科学界定大学物理课程思政教学评价，并将其划分为家国情怀、科学精神、科学家精神和中华优秀传统文化四个一级指标，编制的调查问卷初步检测信度和效度良好。通过对比研究部分学生在大学物理学习前和结课后的情况，本文分析了目前大学物理课程思政教学中需要关注的问题。希望本研究的相关问卷工具和调研结果为各高校开展大学物理课程思政教学提供有益借鉴。