Physics @ Berkeley
Events in Physics
Title: 290Z String Theory Seminar    (Seminar)
Start Date: 11/06/2012
Time: 3:30 pm
Location: 402 Classroom 4th floor Old LeConte Hall, Campus
Speaker: Francesco Benini
Affiliation: Simons Center
Contact Person: LaVern Navarro   (510) 642-2304
Details:

"S^2 partition functions: Coulomb vs Higgs localization and vortices"

Abstract:
In two-dimensional N=(2,2) R-symmetric theories of vector and chiral multiplets on the two-sphere, the partition function as well as expectation values of supersymmetric operators can be computed with
localization techniques. Depending on the choice of localizing term, the partion function can be expressed either as integral over the Coulomb branch, or as a sum over a discrete Higgs branch of a vortex times an antivortex partition functions. As an application, I will show equality of the path integrals for "Seiberg-dual" theories in two dimensions.