| DATE: |
2007-04-24 11:00 - 12:00 |
| PLACE: |
Kenkyu Honkan 2F RM 220 |
| TITLE: |
String fields and matrix models in (p,q) minimal superstring theory |
| CONTACT: |
tsuda |
| SPEAKER: |
Hirotaka Irie (Kyoto Univ.) |
| LANGUAGE: |
Japanese |
| ABSTRACT: |
Minimal superstring theories are good toy models for investigating various aspects of string theory. They have fewer degrees of freedom but still share many features with their critical-string counterparts. One of the most important thing is that they can be completely described with some nonperturbative formulations. In this talk, we construct a closed superstring field theory of (p,q) minimal superstrings from 2-cut ansatz of two-matrix models, with the free fermion realization of 2-component KP hierarchy. The relationships between two-cut two matrix models, Liouville theory and the string field theory are discussed. We also show that a explicit solution of W_{1+\infty} constraints are obtained in the (p,q) = (2,4k) minimal superstrings and the system can be described with supermatrix model. We also want to discuss some other important topics in minimal superstring theories. (Refs. JHEP 0701:037,2007 [hep-th/0611045], JHEP 0703:101,2007 [hep-th/0701031])
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