Theoretical Particle Physics Seminar – Niels Bohr Institute - University of Copenhagen

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Niels Bohr Institute > Calendar > 2007 > Theoretical Particle P...

Theoretical Particle Physics Seminar

Speaker: M. Vonk, Utrecht

Title: Deforming, revolving and resolving - new paths in the string theory landscape

Abstract: String theory vacua with different flux quanta seemingly form a discrete set, but can in fact often be continuously connected by applying monodromies of the Calabi-Yau geometry. Such continuously connected vacua are interesting from the point of view of cosmology, and for constructing domain walls, for example. An intriguing question is which vacua can continuously be connected in this way, and which cannot. I discuss the example of the mirror quintic, and show that there is an extra trick which connects even more vacua. Using toric geometry and geometric transitions, the mirror quintic can be deformed into a manifold of Hodge numbers (86,2). One can apply the larger monodromy group of the latter manifold, and then go back through the geometric transition to find new connections between the vacua of the mirror quintic.