Semi-Flatland

Understand

We study perturbative compactifications of Type II string theory that rely on a fibration structure of the extra dimensions a la SYZ.

• Non-geometric spaces are obtained by using T-dualities as monodromies.
• These vacua generically preserve N=1 supersymmetry in four dimensions, and are U-dual to M-theory on G2 manifolds.
• Several examples are discussed, some of which admit an asymmetric orbifold description.