Penner Type Matrix Model and Seiberg-Witten Theory

Details Penner Type Matrix Model and Seiberg-Witten Theory Penner Type Matrix Model and Seiberg-Witten Theory

2009-11-25

arxiv.org/abs/0911.4797v3

Physics

High Energy Physics

High Energy Physics - Theory

22 pages; v2: references added, typos corrected; v3: a version to appear in JHEP

Scientific paper

We discuss the Penner type matrix model recently proposed by Dijkgraaf and Vafa for a possible explanation of the relation between four-dimensional gauge theory and Liouville theory by making use of the connection of the matrix model to two-dimensional CFT. We first consider the relation of gauge couplings defined in UV and IR regimes of N_f = 4, N = 2 supersymmetric gauge theory being related as $q_{{\rm UV}}={\vartheta_2(q_{{\rm IR}})^4/\vartheta_3(q_{{\rm IR}})^4}$. We then use this relation to discuss the action of modular transformation on the matrix model and determine its spectral curve. We also discuss the decoupling of massive flavors from the N_f = 4 matrix model and derive matrix models describing asymptotically free N = 2 gauge theories. We find that the Penner type matrix theory reproduces correctly the standard results of N = 2 supersymmetric gauge theories.

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