Exceptional complex structures and the hypermultiplet moduli of 5d Minkowski compactifications of M-theory

Exceptional complex structures and the hypermultiplet moduli of 5d Minkowski compactifications of M-theory
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M 理论的 5d Minkowski 紧化的特殊复杂结构和超多重态模

DOI:
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发表时间:
2021
影响因子:
5.4
通讯作者:
D. Waldram
D. Waldram
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
David Tennyson;D. Waldram

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我们详细研究了E6(6) m +广义几何中的一个新的数学对象,称为“异常复杂结构”(ECS)。它是一个传统的复杂结构的延伸,它包含了六维或五维m理论或IIB型超重力的所有自由度,并且在某种程度上,作为五维闵可夫斯基空间的一般超对称紧化的几何特征。我们将ECS定义为一个可积的U*(6) ×∈+结构,并证明它等价于复化广义切束L1的对合子束的一个特定形式。我们还定义了一个精化的SU*(6)结构,并证明了它的可积性还需要一个结构空间上的消失矩映射。我们能够对所有可能的ECSs进行分类,表明它们由两个数字表示为“类型”和“类别”。然后利用ECS的变形理论求出任意SU*(6)结构的模量。我们将这些结构与M理论的一般最小超对称通量背景的几何形式联系起来,其形式为1,1 × M,其中SU*(6)模对应于低维理论中的超多模。这样的几何形状属于零类或一类。前者等效于(非度量相容的)常规SL(3,)结构的选择,并且具有与无流Calabi-Yau情况相同的超多模空间。
We present a detailed study of a new mathematical object in E6(6)ℝ+ generalised geometry called an ‘exceptional complex structure’ (ECS). It is the extension of a conventional complex structure to one that includes all the degrees of freedom of M-theory or type IIB supergravity in six or five dimensions, and as such characterises, in part, the geometry of generic supersymmetric compactifications to five-dimensional Minkowkski space. We define an ECS as an integrable U*(6) × ℝ+ structure and show it is equivalent to a particular form of involutive subbundle of the complexified generalised tangent bundle L1 ⊂ Eℂ. We also define a refinement, an SU*(6) structure, and show that its integrability requires in addition a vanishing moment map on the space of structures. We are able to classify all possible ECSs, showing that they are characterised by two numbers denoted ‘type’ and ‘class’. We then use the deformation theory of ECS to find the moduli of any SU*(6) structure. We relate these structures to the geometry of generic minimally supersymmetric flux backgrounds of M-theory of the form ℝ4,1 × M, where the SU*(6) moduli correspond to the hypermultiplet moduli in the lower-dimensional theory. Such geometries are of class zero or one. The former are equivalent to a choice of (non-metric-compatible) conventional SL(3, ℂ) structure and strikingly have the same space of hypermultiplet moduli as the fluxless Calabi-Yau case.
来自特殊广义几何的精确边缘变形
DOI: 10.1007/jhep01(2017)124
发表时间: 2017
影响因子: 5.4
作者:
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通讯作者: Ashmore A
DOI: 10.1007/jhep12(2016)146
发表时间: 2016
影响因子: 5.4
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通过广义几何的异质背景:矩图和模量
DOI: --
发表时间: 2019
期刊: arXiv e-prints
影响因子: --
作者:
Ashmore Anthony
通讯作者: Ashmore Anthony