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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Maths HEP Lunchtime Seminars: M-theory Conifolds

Presented by Chris Pope (Texas A-M),

24 May 2002 00:00 in CM221

"We describe recent developments in the construction of 7-dimensional metrics of G_2 holonomy, which can provide new insights into the nature of the conifold transition in string theory. The metric on a compact Calabi-Yau 6-manifold that is developing a singularity can be approximated by the smoothed-out deformations of the conifold metric. There are two smooth metrics, called the deformed conifold and the resolved conifold. These can arise in Gromov-Hausdorff limits of smooth G_2 metrics, in which the 7-metric splits off a circle of infinitesimal radius. This provides a way of relating the deformed and resolved conifolds via G_2 reductions of M-theory."

Contact daniele.dorigoni@durham.ac.uk or jyotirmoy.bhattacharya@durham.ac.uk for more information