We review old and new results on the Fröhlich polaron model. The discussion includes the validity of the (classical) Pekar approximation in the strong coupling limit, quantum corrections to this limit, as well as the divergence of the effective polaron mass.

中文翻译：

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强耦合极化子

我们回顾了 Fröhlich 极化子模型的新旧结果。讨论包括（经典）Pekar 近似在强耦合极限中的有效性，对该极限的量子校正，以及有效极化子质量的发散。