5d Superconformal Field Theories (SCFTs) are intrinsically strongly-coupled UV fixed points, whose realization hinges on string theoretic methods: they can be constructed by compactifying M-theory on local Calabi-Yau threefold singularities or alternatively from the world-volume of 5-brane-webs in type IIB string theory. There is a correspondence between 5-brane-webs and toric Calabi-Yau threefolds, however this breaks down when multiple 5-branes are allowed to end on a single 7-brane. In this paper, we extend this connection and provide a geometric realization of brane configurations including 7-branes. A web with 7-branes defines a so-called generalized toric polygon (GTP), which corresponds to combinatorial data that is obtained by removing vertices along external edges of a toric polygon. We identify the geometries associated to GTPs as non-toric deformations of toric Calabi-Yau threefolds and provide a precise, algebraic description of the geometry, when 7-branes are introduced along a single edge. The key ingredients in our analysis are T-branes in a type IIA frame, which includes D6-branes. We show that performing Hanany-Witten moves for the 7-branes on the type IIB side corresponds to switching on semisimple vacuum expectation values on the worldvolume of D6-branes, which in turn uplifts to complex structure deformations of the Calabi-Yau geometries. We test the proposal by computing the crepant resolutions of the deformed geometries, thereby checking consistency with the expected properties of the SCFTs.
Université Libre de Bruxelles(布鲁塞尔自由大学);University of Birmingham(伯明翰大学);SISSA and INFN(的里雅斯特高等研究学院和意大利国家核物理研究所);Università di Trieste(的里雅斯特大学);INFN, Sezione di Trieste(意大利国家核物理研究所的里雅斯特分部)
Integrable Systems for Generalized Toric Polygons and Higgsed 5d N=1 Theories
Ulsan National Institute of Science and Technology(蔚山科学技术院);Beijing Institute of Mathematical Sciences and Applications (BIMSA)(北京数学与交叉科学研究院);Center for Geometry and Physics, Institute for Basic Science (IBS)(基础科学研究院几何物理中心)
Five-dimensional SCFTs and gauge theory phases: an M-theory/type IIA perspective
我们重新审视了卡-丘(CY)三重孤立奇点$\mathbf{X}$和五维超共形场论(SCFT)之间的对应关系,这些超共形场论产生于$\mathbf{X}$横向时空上的M-理论中的低能量。聚焦于复曲面CY奇点的情况下,我们分析了“规范理论阶段”的SCFT利用纤维M-理论/IIA型对偶。在这种设置中,低能规范群仅仅产生于在实直线上纤维化的$A_{M-1}$型ALE空间中包裹2-圈的重合D 6-膜的堆叠上,并且可以系统地读出$\mathbf{X}$的Kähler参数和场论的库仑分支参数(质量和VEV)之间的映射。不同的IIA型“约化”产生不同的规范理论相,其存在依赖于孤立奇点$\mathbf{X}$的特定(部分)分辨率。我们还评论的情况下,非孤立的复曲面奇点。顺便说一下,我们提出了一个稍微修改的表达式的库仑支预势的5 d $\mathcal{N}=1$规范理论。
Mathematics Institute, Uppsala University(乌普萨拉大学数学研究所);Department of Physics and Astronomy, Uppsala University(乌普萨拉大学物理与天文学系);Center for Geometry and Physics, Uppsala University(乌普萨拉大学几何与物理中心);Dipartimento di Matematica, Politecnico di Milano(米兰理工大学数学系);Physique Théorique et Mathématique and International Solvay Institutes Université Libre de Bruxelles(布鲁塞尔自由大学理论物理与数学及国际索尔维研究所)
The City College of the CUNY(纽约市立大学城市学院);The Graduate School and University Center, The City University of New York(纽约市立大学研究生中心);Universidad de Oviedo(奥维耶多大学);Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA)(阿斯图里亚斯空间科学与技术大学研究所)
Diagrammatic construction of GKZ systems for polygonal functions
I.E. Tamm Department of Theoretical Physics, P.N. Lebedev Physical Institute(P.N. 列别杰夫物理研究所 I.E. 塔姆理论物理系);Institute for Theoretical and Mathematical Physics, Lomonosov Moscow State University(莫斯科罗蒙诺索夫国立大学理论与数学物理研究所)
四维CFTs对偶于横截于环面卡-丘三重的膜,已经用环面上的二分图(二聚体模型)来描述。我们使用的理论dessins d 'enfants来描述这些方面的三重排列乘一。这些排列产生了一个优雅的描述之字形路径,这已经出现在表征的环形二聚体,导致一致的SCFT。这些Dessins也与Belyi对有关,它由一条曲线组成,该曲线带有一个到P^1的映射,并在P^1上的三个点上分叉。我们构造了一些与CFTs相关的Belyi对的显式例子,包括C^3和锥。超势的置换对称性与Belyi对的几何有关。阿丁辫群作用及其变体起着有趣的作用。本文提出了一个猜想,将Belyi曲线的复结构与共形场论中的R-荷联系起来。
Towards Generalized Dimers for GTPs: $\mathcal{N}=2$ Fractional Branes at Infinite Coupling
The City College of the CUNY(纽约市立大学城市学院);The Graduate School and University Center, The City University of New York(纽约市立大学研究生院及大学中心);Universidad de Oviedo(奥维耶多大学);Instituto Universitario de Ciencias y Tecnologías Espaciales de Asturias (ICTEA)(阿斯图里亚斯宇宙科学与技术大学研究所)