Return to Colloquia & Seminar listing
Extremal black holes and refined topological strings
Mathematical Physics| Speaker: | Kirill Saraikin, Caltech |
| Location: | 3240 MSB |
| Start time: | Fri, Nov 2 2007, 3:10PM |
Description
The entropy of the supersymmetric 4d black holes which arise upon
compactification of type II superstrings on Calabi-Yau threefolds is
related to topological strings, according to the Ooguri-Strominger-Vafa
conjecture. I will discuss a generalization of this conjecture for
non-supersymmetric, extremal 4d black holes in the same set-up and argue
that it involves the one parametric refinement of the topological string
introduced by Nekrasov.