M-theory and orientifolds

被引：0
|
作者：
Andreas P. Braun
机构：
[1] Durham University,Department of Mathematical Sciences
来源：
Journal of High Energy Physics | / 2020卷
关键词：
String Duality; Differential and Algebraic Geometry; M-Theory; F-Theory;
D O I：
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学科分类号：
摘要：
We construct the M-Theory lifts of type IIA orientifolds based on K3-fibred Calabi-Yau threefolds with compatible involutions. Such orientifolds are shown to lift to M-Theory on twisted connected sum G2 manifolds. Beautifully, the two building blocks forming the G2 manifold correspond to the open and closed string sectors. As an application, we show how to use such lifts to explicitly study open string moduli. Finally, we use our analysis to construct examples of G2 manifolds with different inequivalent TCS realizations.
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