| DATE: |
2007-05-08 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 2F RM 220 |
| TITLE: |
Exactly marginal deformations of quiver gauge theories as seen from brane tilings |
| CONTACT: |
tsuda |
| SPEAKER: |
Hiroshi Isono (University of Tokyo) |
| LANGUAGE: |
Japanese |
| ABSTRACT: |
We study the relation between exactly marginal deformations in a large class of N=1 superconformal quiver gauge theories described by brane tilings and the degrees of freedom in the corresponding 5-brane systems. We show with the help of NSVZ exact beta functions that there are generically d-1 complex exactly marginal deformations of a gauge theory, where d is the perimeter of the corresponding toric diagram. We identify d-3 complex marginal deformations as deformations of the brane system and Wilson lines on it, and the other two, the diagonal gauge coupling and a beta-like deformation, as background supergravity fields. (Refs. Prog.Theor.Phys. 117 (2007) [arXiv: hep-th/0702049]) |
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