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从扩展的Ｇｉｎｄｅｒ－Ｅｐｓｔｅｉｎ模型出发，运用自洽迭代方法，研究了聚对苯亚胺中由环失配缺陷引起的环扭角孤子．一对缺陷结构互补电性相反的环扭角孤子光吸收的数值计算结果与ＰＮＢ聚合物的光诱导吸收实验相符合．
Starting from the extended Ginder-Epstein model, the self-consistent iterative method was used to study the toroidal solitons caused by ring mismatch defects in poly-p-phenyleneimine. The numerical results of the light absorption of the toroidal solitons with complementary electrical opposite defects of a pair of defect structures are in good agreement with the light induced absorption experiments of PNB polymers.