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arXiv 1507.00301hep-thmath.AG
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规范线性西格玛模型的通用镜对

General Mirror Pairs for Gauged Linear Sigma Models

Paul S. Aspinwall, M. Ronen Plesser

摘要:

我们仔细分析了一个阿贝尔规范线性σ模型表现出非平凡的IR行为所描述的非奇异超共形场论确定超弦真空的条件。这是不参考几何相位,通过关联奇异行为的非紧空间(半)经典真空。我们发现由自反组合数据确定的模型对于其参数的一般值是非奇异的。这个条件有一个令人愉快的特点,即非奇异规范线性σ模型的镜像是另一个这样的模型,但它显然太强了,我们提供了一个非自反镜像对的例子。我们讨论了一个较弱的条件,考虑极值过渡,这也是镜像对称的,我们猜想是足够的。我们将这些想法应用到极端的过渡和理解的方式,在这两个Berglund-Hubsch镜像对称和Vafa-Witten镜像orbifold与离散挠率可以被看作是特殊情况下的一般组合对偶的GLSM。在前一种情况下,我们遇到一个例子,表明我们的较弱条件仍然是不必要的。

英文摘要:

We carefully analyze the conditions for an abelian gauged linear sigma-model to exhibit nontrivial IR behavior described by a nonsingular superconformal field theory determining a superstring vacuum. This is done without reference to a geometric phase, by associating singular behavior to a noncompact space of (semi-)classical vacua. We find that models determined by reflexive combinatorial data are nonsingular for generic values of their parameters. This condition has the pleasant feature that the mirror of a nonsingular gauged linear sigma-model is another such model, but it is clearly too strong and we provide an example of a non-reflexive mirror pair. We discuss a weaker condition inspired by considering extremal transitions, which is also mirror symmetric and which we conjecture to be sufficient. We apply these ideas to extremal transitions and to understanding the way in which both Berglund-Hubsch mirror symmetry and the Vafa-Witten mirror orbifold with discrete torsion can be seen as special cases of the general combinatorial duality of GLSMs. In the former case we encounter an example showing that our weaker condition is still not necessary.

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