Unification of M and Ftheory CalabiYau fourfold vacua
Abstract
We consider splittingtype phase transitions between CalabiYau fourfolds. These transitions generalize previously known types of conifold transitions between threefolds. Similar to conifold configurations the singular varieties mediating the transitions between fourfolds connect moduli spaces of different dimensions, describing ground states in M and Ftheory with different numbers of massless modes as well as different numbers of cycles to wrap various pbranes around. The web of CalabiYau fourfolds obtained in this way contains the class of all complete intersection manifolds embedded in products of ordinary projective spaces, but extends also to weighted configurations. It follows from this that for some of the fourfold transitions vacua with vanishing superpotential are connected to ground states with nonzero superpotential.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1997
 DOI:
 10.1016/S05503213(97)894813
 arXiv:
 arXiv:hepth/9610195
 Bibcode:
 1997NuPhB.498..156B
 Keywords:

 High Energy Physics  Theory
 EPrint:
 plain TeX, 22pp