Archive of IAS Monday High Energy Theory Seminars

In 2011, the pace of the Standard Model Higgs search far exceeded expectation. All but a narrow mass window between 122-128 GeV is excluded. At this point only two search channels can provide meaningful insight into resolving this search in 2012....

We review our recent works on the index calculations related to 4d, 5d, and 6d maximally supersymmetric theories, where we have explored the 't Hooft operators, instantons, and monopole string junctions. In addition, we provide a tentative solution...

Matrix models yield a theory of random two dimensional surfaces. They support a 1/N expansion dominated by planar graphs (corresponding to planar surfaces) and undergo a phase transition to a continuum theory. In higher dimensions matrix...

In this talk I will discuss recent work constructing heterotic standard models by compactifying on smooth Calabi-Yau three-folds in the presence of purely Abelian internal gauge fields. The simple construction of these models allows for a large...

I will present the open string tree level amplitude of massless states to any number of external legs. It turns out that the kinematic factor of disk amplitudes is entirely captured by the underlying SYM field theory, i.e. that all the dependence on...

We introduce a new numerical algorithm based on semidefinite programming to efficiently compute bounds on operator dimensions, central charges, and OPE coefficients in 4D conformal and N=1 superconformal field theories. Using our algorithm, we...