We show how (topologically twisted) quantum field theories in the IR of bulk RG flows can be represented within the respective UV theories by means of codimenion- one projection defects. Indeed, from this perspective, RG flows of bulk theories can be described in terms of RG flows of the codimension-one identity defect in the fixed UV bulk theory. We illustrate this in the example of RG flows between supersymmetric Landau- Ginzburg orbifold models, for which the respective defects can be described in terms of matrix factorizations.

中文翻译：

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通过紫外投影实现红外理论

我们展示了体 RG 流的 IR 中的（拓扑扭曲的）量子场理论如何通过 codimenion-one 投影缺陷在相应的 UV 理论中表示。事实上，从这个角度来看，体理论的 RG 流可以用固定 UV 体理论中的共维一同一性缺陷的 RG 流来描述。我们在超对称 Landau-Ginzburg orbifold 模型之间的 RG 流的例子中说明了这一点，其中各自的缺陷可以用矩阵分解来描述。