The following notes derive from review lectures on closed string field theory given at the Galileo Galilei Institute for Theoretical Physics in March 2019.

中文翻译：

---

闭弦场论四讲

以下笔记来自于 2019 年 3 月在伽利略伽利略理论物理研究所的闭弦场理论评论讲座。