New string vacua from twistor spaces

Understand

We find a new family of AdS_4 vacua in IIA string theory.

• The internal space is topologically either the complex projective space CP^3 or the "flag manifold" SU(3)/(U(1)xU(1)), but the metric is in general neither Einstein nor Kaehler.
• All known moduli are stabilized by fluxes, without using quantum effects or orientifold planes.
• The analysis is completely ten--dimensional and does not rely on assumptions about Kaluza--Klein reduction.