# Orientifold's landscape: non-factorisable six-tori

@article{Forste2007OrientifoldsLN, title={Orientifold's landscape: non-factorisable six-tori}, author={Stefan Forste and Cristina Timirgaziu and Ivonne Zavala}, journal={Journal of High Energy Physics}, year={2007}, volume={2007}, pages={025-025} }

We construct type IIA orientifolds on T6/2 × 2 which admit non factorisable lattices. We describe a method to deal with this kind of configurations and discuss how the compactification lattice affects the tadpole cancellation conditions. Moreover, we include D6-branes which are not parallel to O6-planes. These branes can give rise to chiral spectra in four dimensions, thus uncovering a new corner in the landscape of intersecting D-brane model constructions. We demonstrate the construction at an…

## 23 Citations

### Oddness from rigidness

- Mathematics
- 2008

We revisit the problem of constructing type IIA orientifolds on T6/2 × 2 which admit (non)-factorisable lattices. More concretely, we consider a 2 × 2' orientifold with discrete torsion, where…

### Comments on orientifolds without vector structure

- Mathematics
- 2008

We revisit type I compactifications with a Spin(32)/Z2 gauge bundle that admits no vector structure. We elucidate the relation of this Z2 obstruction to discrete B- field flux and to 't Hooft flux…

### Yukawa couplings for intersecting D-branes on non-factorisable tori

- Mathematics
- 2014

A bstractWe compute Yukawa couplings in type IIa string theory compactified on a sixtorus in the presence of intersecting D6-branes. The six-torus is generated by an SO(12) root lattice. Yukawa…

### Yukawa couplings from magnetized D-brane models on non-factorisable tori

- MathematicsJournal of High Energy Physics
- 2018

A bstractWe compute Yukawa couplings in type IIB string theory compactified on a non factorisable six-torus in the presence of D9 branes and fluxes. The setting studied in detail, is obtained by…

### Massless spectra and gauge couplings at one-loop on non-factorisable toroidal orientifolds

- Physics
- 2018

### Three-family GUT models from heterotic orbifold on E_6 root lattice

- Mathematics
- 2007

We construct three-family supersymmetric GUT models from heterotic string. We investigate compactifications on non-factorizable torus defined by E_6 root lattice, which admits automorphism of Z_3 x…

### Towards geometric D6-brane model building on non-factorisable toroidal ℤ4-orbifolds

- Mathematics
- 2016

A bstractWe present a geometric approach to D-brane model building on the non-factorisable torus backgrounds of T6/ℤ4, which are A3 × A3 and A3 × A1 × B2. Based on the counting of ‘short’…

### Millions of standard models on 6 '?

- Physics
- 2008

: Using previous results on the statistics of intersecting D6-brane models on T 6 / Z ′ 6 we analyse solutions that resemble the gauge group and matter content of the supersymmetric standard model.…

### Kähler metrics and gauge kinetic functions for intersecting D6‐branes on toroidal orbifolds – The complete perturbative story

- Mathematics
- 2012

We systematically derive the perturbatively exact holomorphic gauge kinetic function, the open string Kähler metrics and closed string Kähler potential on intersecting D6‐branes by matching open…

## References

SHOWING 1-10 OF 105 REFERENCES

### Supersymmetric Intersecting Branes on the Type IIA T6/Bbb Z4 Orientifold

- Mathematics
- 2003

We study supersymmetric intersecting D6-branes wrapping 3-cycles in the type-IIA T6/4 orientifold background. As a new feature, the 3-cycles in this orbifold space arise both from the untwisted and…

### Type-IIA orientifolds on general supersymmetric ℤN orbifolds

- Mathematics
- 2004

We construct type-IIA orientifolds for general supersymmetric N orbifolds. In particular, we provide the methods to deal with the non-factorisable six-dimensional tori for the cases 7, 8, '8, 12 and…

### Intersecting D-branes on shift Bbb Z2 × Bbb Z2 orientifolds

- Mathematics
- 2006

We investigate 2 × 2 orientifolds with group actions involving shifts. A complete classification of possible geometries is presented where also previous work by other authors is included in a unified…

### Z(2)x Z(2)heterotic orbifold models of non factorisable six dimensional toroidal manifolds

- Mathematics
- 2006

We discuss heterotic strings on 2 × 2 orbifolds of non factorisable six-tori. Although the number of fixed tori is reduced as compared to the factorisable case, Wilson lines are still needed for the…

### Consistency conditions for orientifolds and D-manifolds.

- MathematicsPhysical review. D, Particles and fields
- 1996

It is argued that the {ital K}3 orbifold with spin connection embedded in gauge connection corresponds to an interacting conformal field theory in the type I theory.

### CHIRAL N=1 4D ORIENTIFOLDS WITH D-BRANES AT ANGLES

- Mathematics
- 2004

D6-branes intersecting at angles allow for phenomenologically appealing constructions of four-dimensional string theory vacua. While it is straightforward to obtain non-supersymmetric realizations of…

### Orientifolds with branes at angles

- Mathematics
- 2001

We present supersymmetry breaking four-dimensional orientifolds of type-IIA strings. The compact space is a torus times a four-dimensional orbifold. The orientifold group reflects one direction in…