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arXiv 2109.04124hep-thmath-phmath.AGmath.MPmath.QA
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阿贝尔广义线性对称模型的缺陷与相变

Defects and phase transitions to geometric phases of abelian GLSMs

Ilka Brunner, Lukas Krumpeck, Daniel Roggenkamp

摘要:

我们考虑具有规范群U(1)的规范线性西格玛模型,它具有几何相和朗道金兹伯格相.我们构建缺陷,实现运输D-膜从朗道-金兹伯格阶段的几何阶段。通过它们与边界条件的融合,这些缺陷特别提供了各个D-膜范畴之间的函子。后者将(等变)矩阵分解映射到相干层,并且可以明确地用矩阵分解的复形来表示。

英文摘要:

We consider gauged linear sigma models with gauge group U(1) that exhibit a geometric as well as a Landau Ginzburg phase. We construct defects that implement the transport of D-branes from the Landau-Ginzburg phase to the geometric phase. Through their fusion with boundary conditions these defects in particular provide functors between the respective D-brane categories. The latter map (equivariant) matrix factorizations to coherent sheaves and can be formulated explicitly in terms of complexes of matrix factorizations.

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