Recent work is reviewed in which compactifications of string and M theory are constructed in
which all scalar fields (moduli) are massive, and supersymmetry is broken with a small …

We obtain the vacuum solutions for M-theory compactified on eight-manifolds with non-
vanishing four-form flux by analyzing the scalar potential appearing in the three-dimensional …

We determine the N= 1 low energy effective action for compactifications of type IIB string
theory on compact Calabi–Yau orientifolds in the presence of background fluxes from a …

The N= 1 effective action for generic type IIA Calabi–Yau orientifolds in the presence of
background fluxes is computed from a Kaluza–Klein reduction. The Kähler potential, the …

We study novel type-IIB compactifications on the T 6/Z 2 orientifold. This geometry arises in
the T-dual description of type-I theory on T 6, and one normally introduces 16 space-filling …

Using a Kaluza–Klein reduction of the Dirac–Born–Infeld and Chern–Simons action we
compute the four-dimensional N= 1 effective action for the massless modes of a D7-brane …

In this paper we compute the N= 1 effective low energy action for a stack of N space–time
filling D3-branes in generic type IIB Calabi–Yau orientifolds with non-trivial background …

This graduate-level primer presents a tutorial introduction to and overview of N= 2
supergravity theories-with 8 real supercharges and in 4, 5 and 6 dimensions. First, the …

The four-dimensional N= 1 supergravity theories arising in compactifications of type IIA and
type IIB on generalized orientifold backgrounds with background fluxes are discussed. The …

In this review article we study type IIB superstring compactifications in the presence of space‐
time filling D‐branes while preserving 𝒩= 1 supersymmetry in the effective four‐dimensional …