Flux compactification
Abstract
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 positive cosmological constant, features needed to reproduce real world physics. In this work it is explained that there is a “landscape” of string/M theory vacua, perhaps containing many candidates for describing real world physics, and arguments are presented for and against this idea. Statistical surveys of the landscape are discussed, as well as the prospects for testable consequences of this picture, such as observable effects of moduli, constraints on early cosmology, and predictions for the scale of supersymmetry breaking.
 Publication:

Reviews of Modern Physics
 Pub Date:
 April 2007
 DOI:
 10.1103/RevModPhys.79.733
 arXiv:
 arXiv:hepth/0610102
 Bibcode:
 2007RvMP...79..733D
 Keywords:

 11.25.Mj;
 11.25.Wx;
 04.50.+h;
 12.60.i;
 Compactification and fourdimensional models;
 String and brane phenomenology;
 Gravity in more than four dimensions KaluzaKlein theory unified field theories;
 alternative theories of gravity;
 Models beyond the standard model;
 High Energy Physics  Theory;
 High Energy Physics  Phenomenology
 EPrint:
 66 pages, 3 figures, Latex with revtex4 macros. v3: version to appear in RMP