Non-geometric Calabi-Yau backgrounds and K3 automorphisms

@article{Hull2017NongeometricCB,
  title={Non-geometric Calabi-Yau backgrounds and K3 automorphisms},
  author={Christopher M. Hull and Dan Isra{\"e}l and Alessandra Sarti},
  journal={Journal of High Energy Physics},
  year={2017},
  volume={2017},
  pages={1-44}
}
A bstractWe consider compactifications of type IIA superstring theory on mirror-folds obtained as K3 fibrations over two-tori with non-geometric monodromies involving mirror symmetries. At special points in the moduli space these are asymmetric Gepner models. The compactifications are constructed from non-geometric automorphisms that arise from the diagonal action of an automorphism of the K3 surface and of an automorphism of the mirror surface. We identify the corresponding gaugings of N… 

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References

SHOWING 1-10 OF 64 REFERENCES

Partial SUSY breaking for asymmetric Gepner models and non-geometric flux vacua

A bstractUsing the method of simple current extensions, asymmetric Gepner models of Type IIB with N$$ \mathcal{N} $$ = 1 space-time supersymmetry are constructed. The combinatorics of the massless

Mirrorfolds with K3 fibrations

We study a class of non-geometric string vacua realized as completely soluble superconformal field theory (SCFT). These models are defined as `interpolating orbifolds' of K3 × S1 by the mirror

A geometry for non-geometric string backgrounds

A geometric string solution has background fields in overlapping coordinate patches related by diffeomorphisms and gauge transformations, while for a non-geometric background this is generalised to

= 4 gauged supergravity from duality-twist compactifications of string theory

We investigate the lifting of half-maximal four-dimensional gauged supergravities to compactifications of string theory. It is shown that a class of such supergravities can arise from

Duality in {Calabi-Yau} Moduli Space

Unity of superstring dualities

FJRW-Rings and Mirror Symmetry

The Landau-Ginzburg Mirror Symmetry Conjecture states that for an invertible quasi-homogeneous singularity W and its maximal group G of diagonal symmetries, there is a dual singularity WT such that

Flux compactifications of string theory on twisted tori

Global aspects of Scherk‐Schwarz dimensional reduction are discussed and it is shown that it can usually be viewed as arising from a compactification on the compact space obtained by identifying a

Observations on the Moduli Space of Superconformal Field Theories

Nongeometric Calabi-Yau compactifications and fractional mirror symmetry

We construct a wide class of non-geometric compactifications of type II superstring theories preserving N=1 space-time supersymmetry in four dimensions, starting from Calabi-Yau compactifications at
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