Rolling among G_2 vacua - Archive ouverte HAL
Article Dans Une Revue Journal of High Energy Physics Année : 2001

Rolling among G_2 vacua

Résumé

We consider topology-changing transitions between 7-manifolds of holonomy G_2 constructed as a quotient of CY x S^1 by an antiholomorphic involution. We classify involutions for Complete Intersection CY threefolds, focussing primarily on cases without fixed points. The ordinary conifold transition between CY threefolds descends to a transition between G_2 manifolds, corresponding in the N=1 effective theory incorporating the light black hole states either to a change of branch in the scalar potential or to a Higgs mechanism. A simple example of conifold transition with a fixed nodal point is also discussed. As a spin-off, we obtain examples of G_2 manifolds with the same value for the sum of Betti numbers b_2+b_3, and hence potential candidates for mirror manifolds.

Dates et versions

hal-00016308 , version 1 (26-12-2005)

Identifiants

Citer

H. Partouche, B. Pioline. Rolling among G_2 vacua. Journal of High Energy Physics, 2001, 0103, pp.005. ⟨hal-00016308⟩
70 Consultations
0 Téléchargements

Altmetric

Partager

More