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 …

A bstract Five-and four-dimensional superconformal field theories with eight supercharges
arise from canonical threefold singularities in M-theory and Type IIB string theory …

A review of the relation between Chern-Simons gauge theory and topological string theory
on noncompact Calabi-Yau spaces is given. This relation has made it possible to give an …

A bstract Compactification of M-theory and of IIB string theory on threefold canonical
singularities gives rise to superconformal field theories (SCFTs) in 5d and 4d, respectively …

The past two decades have seen transformative advances in cosmology and string theory.
Observations of the cosmic microwave background have revealed strong evidence for …

The current flow of high accuracy astrophysical data, among which are the Cosmic
Microwave Background (CMB) measurements by the Planck satellite, offers an …

In the context of string theory, axions appear to provide the most plausible solution of the
strong CP problem. However, as has been known for a long time, in many string-based …

String theory is one of the most exciting and challenging areas of modern theoretical
physics. This book guides the reader from the basics of string theory to recent developments …

We compute the prepotentials and the geometry of the moduli spaces for a Calabi-Yau
manifold and its mirror. In this way we obtain all the sigma model corrections to the Yukawa …

Warped compactifications with significant warping provide one of the few known
mechanisms for naturally generating large hierarchies of physical scales. We demonstrate …