The source of the universe inflation is electromagnetic fields obeying rational nonlinear electrodynamics proposed earlier. Within this model the singularities of the electric field at the center of charges, the Ricci scalar, the Ricci tensor squared and the Kretschmann scalar are absent. We consider the universe which is filled by stochastic magnetic fields. It is demonstrated that the inflation lasts approximately [Formula: see text] s with the reasonable [Formula: see text]-folding number [Formula: see text]. The inflation starts from de Sitter space–time and after the universe inflation end it decelerates approaching the radiation era.

中文翻译：

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有理非线性电动力学导致宇宙膨胀

宇宙膨胀的源头是遵循早先提出的有理非线性电动力学的电磁场。在这个模型中，电荷中心的电场奇点、Ricci 标量、Ricci 张量平方和 Kretschmann 标量不存在。我们考虑充满随机磁场的宇宙。通过合理的[公式：见文本]-折叠数[公式：见文本]，证明了暴胀大约持续[公式：见文本] s。暴胀从德西特时空开始，宇宙暴胀结束后减速接近辐射时代。