Physical Society Colloquium

Interview for Faculty Position

Seeking the Standard Model in String Theory:
Intersecting Brane Worlds and Nonperturbative Transitions

Raul Rabadan

Institute for Advanced Study

String Theory is a candidate for an unifying theory of gravity and particle physics. I discuss a string scenario in which different standard model gauge interactions live on different brane worlds. Quarks and leptons live at brane intersections, located at different positions in the extra dimensions. I construct explicit examples of realistic three-generation models. In the second part of the talk, I describe how different classical descriptions (different geometries) are connected through quantum non-perturbative effects.