Archive of IAS Physics Group Meetings

Aug
12
2008

Physics Group Meeting

Four-Dimensional Wall-Crossing via Three-Dimensional Field Theory
Andrew Neitzke
1:30pm|Bloomberg Hall Physics Library
We give a physical explanation of the Kontsevich-Soibelman wall-crossing formula for the BPS spectrum in Seiberg-Witten theories. In the process we give an exact description of the BPS instanton corrections to the hyperkahler metric of the moduli...
May
14
2008

Physics Group Meeting

Local Phenomenological Models in M-Theory
Jacob Bourjaily
1:30pm|Bloomberg Hall Physics Library
Apr
23
2008

Physics Group Meeting

Chiral Algebras of (0,2) Sigma-Models: Beyond Perturbation Theory
Meng-Chwan Tan
1:30pm|Bloomberg Hall Physics Library
We shall discuss the chiral algebras of a (0,2) sigma-model on homogeneous flag manifolds of various dimensions. As is by now well-known, the chiral algebras can be described by the theory of "Chiral Differential Operators" within perturbation...
Apr
09
2008

Physics Group Meeting

Discerning SUSY in Cascade Decay Correlations
Jessie Shelton
1:30pm|Bloomberg Hall Physics Library
Physics