In the twisted M-theory setting, various types of fusion of M2 and M5 branes induce coproducts between the algebra of operators on M2 branes and the algebra of operators on M5 branes. By doing a perturbative computation in the gravity side, which is captured by the 5d topological holomorphic $U(1)$ Chern-Simons theory, we reproduce the non-perturbative coproducts.

中文翻译：

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缺陷融合的扭曲全息术

在扭曲的M理论背景下，M2和M5麸的各种融合会在M2麸上的算子代数和M5麸上的算子代数之间产生副产物。通过在重力侧进行微扰计算（由5d拓扑全同性$ U（1）$ Chern-Simons理论捕获），我们再现了非微扰副产物。