| DATE: |
2007-02-13 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 2F RM 220 |
| TITLE: |
Lattice formulation of two dimensional topological field theory |
| CONTACT: |
tsuda |
| SPEAKER: |
Tomohisa Takimi (Kyoto University/RIKEN) |
| LANGUAGE: |
Japanese |
| ABSTRACT: |
Recently, to solve the fine-tuning problem in the supersymmetric lattice gauge theories with scalar fields, formulations with preserved partial SUSY on a lattice have been proposed. Such models are lattice regularizations of topological field theory, on which we can invetigate the topological property such as BRST cohomology and partition function. In this talk, I will explain how such formulations are constructed from 0-dimensional topological matrix model. After that I will talk about the Nicolai Map and the BRST cohomology in the model. And I also explain that the study of topological property gives us a criteria whether a lattice formulation with preserved SUSY charge has a desired continuum theory or not.
Refs.
K.Ohta and T.Takimi, To be appear in Prog. Theor. Phys. 117 (2007) No.2; hep-lat/0611011.
A.G.Cohen,D.B.Kaplan,E.Katz and M.Unsal, JHEP 0308:024,2003; hep-lat/0307012.
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