We reconstruct a complete type II superstring field theory with $L_\infty$ structure in a symmetric way concerning the left- and right-moving sectors. Based on the new construction, we show again that the tree-level S-matrix agrees with that obtained using the first-quantization method. Not only is this a simple and elegant reconstruction, but it also enables the action to be mapped to that in the Wess–Zumino–Witten-like superstring field theory, which has not yet been constructed, and fills the only gap in that formulation.

中文翻译：

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重新审视 II 型超弦场论

我们以关于左右移动扇区的对称方式重构了具有$L_\infty$结构的完整II型超弦场论。基于新的结构，我们再次证明了树级 S 矩阵与使用第一量化方法获得的结果一致。这不仅是一个简单而优雅的重构，而且还能够将作用映射到 Wess-Zumino-Witten 类超弦场理论中的作用，该超弦场理论尚未构建，并填补了该公式中的唯一空白。