B-branes and supersymmetric quivers in 2d

B-branes and supersymmetric quivers in 2d
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B 膜和二维超对称颤动

DOI:
10.1007/jhep02(2018)051
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发表时间:
2018
影响因子:
5.4
通讯作者:
Sharpe, Eric
Sharpe, Eric
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Closset, Cyril;Guo, Jirui;Sharpe, Eric

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我们研究了2d=(0,2)超对称箭图规范理论,它描述了D_1膜在四重(CY_4)奇点的低能动力学。在一般情况下,这些理论的全纯部分--物质含量和(经典)超势相互作用--应该被CY-4上的拓扑B-模型完全捕获。通过研究一些例子,我们证实了这一预期,并充实了B-膜范畴和超对称箭图之间的字典:超对称箭图的物质内容编码在B-膜之间的态射中(即,外部相干层组),而超势相互作用编码在由态射满足的A-∞代数中。这为我们提供了超对称箭图的直接从CY 4几何推导出来的结果。我们还提出了=(0,2)规范理论的三部性与例外层集合的某些突变之间的关系。0d=1的超对称箭图,对应于D瞬子探测cy5奇点,也可以进行类似的讨论。
We study 2d=(0, 2) supersymmetric quiver gauge theories that describe the low-energy dynamics of D1-branes at Calabi-Yau fourfold (CY 4) singularities. On general grounds, the holomorphic sector of these theories—matter content and (classical) superpotential interactions—should be fully captured by the topological B-model on the CY 4. By studying a number of examples, we confirm this expectation and flesh out the dictionary between B-brane category and supersymmetric quiver: the matter content of the supersymmetric quiver is encoded in morphisms between B-branes (that is, Ext groups of coherent sheaves), while the superpotential interactions are encoded in the A∞ algebra satisfied by the morphisms. This provides us with a derivation of the supersymmetric quiver directly from the CY 4 geometry. We also suggest a relation between triality of=(0, 2) gauge theories and certain mutations of exceptional collections of sheaves. 0d= 1 supersymmetric quivers, corresponding to D-instantons probing CY 5 singularities, can be discussed similarly.
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