
Lecture Event 
SFB Colloquium 
Prof. Dr. Holger Reich, I. Melnikov 
16 Nov 2010, 16:00 – 19:00
Talk 
Heterotic strings and deformed quantum geometry 
Ilarion Melnikov (AEI) 
16 Nov 2010, 17:30 – 18:30
Compactifications of the ten-dimensional heterotic string to four dimensions are a well-known source of interesting particle physics models.  Their structure also has interest for the mathematicians---for instance, the phenomenon of mirror
symmetry was first described in this context.  Despite being a rather venerable subject, we know surprisingly little about the general structure of these compactifications.   In my talk I will describe some recent developments that have allowed for some new insights and have led to some new mathematical
structures.  In particular, I will focus on deformations of quantum cohomology, a structure familiar from the mathematics of mirror symmetry.