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arXiv 2503.06293hep-thmath.AG
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B-膜在非阿贝尔GLSMs中的传输:针对K_{Gr(2,N)}

B-brane transport in nonabelian GLSMs for $K_{Gr(2,N)}$

Yau Mathematical Sciences Center, Tsinghua University(清华大学丘成桐数学科学中心);School of Mathematical Sciences and Institute for Advanced Study, Tongji University(同济大学数学科学学院和高等研究院);Center for Mathematics and Interdisciplinary Sciences, Fudan University(复旦大学数学科学学院);Shanghai Institute for Mathematics and Interdisciplinary Sciences (SIMIS)(上海数学与交叉学科研究院)

Jirui Guo, Mauricio Romo, Lucy Smith

AI总结:

研究非阿贝尔GLSMs中B-膜的传输特性,提出等级限制规则和窗口类别,揭示N偶奇对结果的影响,并探讨强耦合相中的B-膜行为。

摘要:

我们研究了一类非阿贝尔GLSMs中B-膜的性质,这些GLSMs在其几何相中实现了canonical line bundle K_{Gr(2,N)}。通过分析半球分区函数,即B-膜中心电荷,我们提出了一个等级限制规则以及对应的窗口类别,用于特定路径之间的相。我们发现N为偶数和奇数的情况之间存在非常显著的差异。特别是,在N为偶数的情况下,对于固定的路径,可能有多种窗口类别。对开放Witten指数和一些monodromies的详细计算为我们的窗口类别提案提供了证据。此外,我们基于我们的窗口提案,对N=4情况下强耦合相中的B-膜做出了一些评论。

英文摘要:

We study the properties of B-branes in a class of nonabelian GLSMs realizing the canonical line bundle $K_{Gr(2,N)}$ in their geometric phase. By analysing the hemisphere partition function, i.e. B-brane central charge, we propose a grade restriction rule and the corresponding window categories for a specific class of paths between phases. We find very striking differences between the cases of N even and N odd. In particular, for the case of N even, we suggest that more than one window category can be possible, for a fixed path. A detailed computation of the open Witten index and some monodromies provides evidence for our proposal for window categories. In addition, we make some remarks about B-branes on the the strongly coupled phase, for the case $N=4$, based on our window proposal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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