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We derive a family of matrix models which encode solutions to the Seiberg-Witten theory in 4 and 5 dimensions. Partition functions of these matrix models are equal to the corresponding Nekrasov partition functions, and their spectral curves…

High Energy Physics - Theory · Physics 2009-06-19 Albrecht Klemm , Piotr Sułkowski

We show how to represent a class of expressions involving discrete sums over partitions as matrix models. We apply this technique to the partition functions of 2* theories, i.e. Seiberg-Witten theories with the massive hypermultiplet in the…

High Energy Physics - Theory · Physics 2009-10-29 Piotr Sułkowski

We investigate combinatorics of the instanton partition function for the generic four dimensional toric orbifolds. It is shown that the orbifold projection can be implemented by taking the inhomogeneous root of unity limit of the q-deformed…

High Energy Physics - Theory · Physics 2012-03-03 Taro Kimura

We study N=2 supersymmetric four dimensional gauge theories, in a certain N=2 supergravity background, called Omega-background. The partition function of the theory in the Omega-background can be calculated explicitly. We investigate…

High Energy Physics - Theory · Physics 2007-05-23 Nikita Nekrasov , Andrei Okounkov

In this paper we study generic M(atrix) theory compactifications that are specified by a set of quotient conditions. A procedure is proposed, which both associates an algebra to each compactification and leads deductively to general…

High Energy Physics - Theory · Physics 2010-11-19 Pei-Ming Ho , Yi-Yen Wu , Yong-Shi Wu

We consider N = 3 supersymmetric Chern-Simons gauge theories with product unitary and orthosymplectic groups and bifundamental and fundamental fields. We study the partition functions on an S^3 by using the Kapustin-Willett-Yaakov matrix…

High Energy Physics - Theory · Physics 2015-06-04 Daniel R. Gulotta , Christopher P. Herzog , Tatsuma Nishioka

We consider the Itzykson-Zuber-Eynard-Mehta two-matrix model and prove that the partition function is an isomonodromic tau function in a sense that generalizes Jimbo-Miwa-Ueno's. In order to achieve the generalization we need to define a…

Exactly Solvable and Integrable Systems · Physics 2009-11-13 M. Bertola , O. Marchal

We point out two extensions of the relation between matrix models, topological strings and N=1 supersymmetric gauge theories. First, we note that by considering double scaling limits of unitary matrix models one can obtain large N duals of…

High Energy Physics - Theory · Physics 2010-04-05 Robbert Dijkgraaf , Cumrun Vafa

We derive exact formulae for the partition function and the expectation values of Wilson/'t Hooft loops, thus directly checking their S-duality transformations. We focus on a special class of N=2 gauge theories on S^4 with fundamental…

High Energy Physics - Theory · Physics 2015-06-16 Francesco Fucito , Jose Francisco Morales , Rubik Poghossian , Daniel Ricci Pacifici

We discuss the relation between matrix models and the Seiberg--Witten type (SW) theories, recently proposed by Dijkgraaf and Vafa. In particular, we prove that the partition function of the Hermitean one-matrix model in the planar (large…

High Energy Physics - Theory · Physics 2010-04-05 L. Chekhov , A. Mironov

The relation between the Seiberg-Witten prepotentials, Nekrasov functions and matrix models is discussed. We derive quasiclassically the matrix models of Eguchi-Yang type, describing the instantonic contribution to the deformed partition…

High Energy Physics - Theory · Physics 2012-02-03 A. Marshakov

We evaluate partition functions of matrix models which are given by topologically twisted and dimensionally reduced actions of d=4 N=1 super Yang-Mills theories with classical (semi-)simple gauge groups, SO(2N), SO(2N+1) and USp(2N). The…

High Energy Physics - Theory · Physics 2008-11-26 H. Itoyama , H. Kihara , R. Yoshioka

Partition function of beta-gamma systems on the orbifolds C^2/Z_N and C^3/Z_M x Z_N are obtained as the invariant part of that on the respective affine spaces, by lifting the geometric action of the orbifold group to the fields.…

High Energy Physics - Theory · Physics 2015-06-17 Chandrasekhar Bhamidipati , Koushik Ray

For one-matrix models with polynomial potentials, the explicit relationship between the partition function and the isomonodromic tau function for the 2x2 polynomial differential systems satisfied by the associated orthogonal polynomials is…

Exactly Solvable and Integrable Systems · Physics 2008-11-26 M. Bertola , B. Eynard , J. Harnad

Using matrix-model methods we study three different N=2 models: U(N) x U(N) with matter in the bifundamental representation, U(N) with matter in the symmetric representation, and U(N) with matter in the antisymmetric representation. We find…

High Energy Physics - Theory · Physics 2010-04-05 S. G. Naculich , H. J. Schnitzer , N. Wyllard

We study Matrix Quantum Mechanics on the Euclidean time orbifold $S_1/\mathbb{Z}_2$. Upon Wick rotation to Lorentzian time and taking the double-scaling limit this theory provides a toy model for a big-bang/big crunch universe in two…

High Energy Physics - Theory · Physics 2020-03-17 Panagiotis Betzios , Umut Gürsoy , Olga Papadoulaki

In this thesis we will study matrix models with discrete gauge group $S_N$. We will put these matrix models into a generalized Schur-Weyl duality framework where dual algebras, known as partition algebras, emerge. These form generalizations…

High Energy Physics - Theory · Physics 2023-11-20 Adrian Padellaro

We present a complex matrix gauge model defined on an arbitrary two-dimensional orientable lattice. We rewrite the model's partition function in terms of a sum over representations of the group U(N). The model solves the general…

High Energy Physics - Theory · Physics 2014-11-18 Ivan K. Kostov , Matthias Staudacher , Thomas Wynter

We study the generalized matrix model which corresponds to the n-point toric Virasoro conformal block. This describes four-dimensional N=2 SU(2)^n gauge theory with circular quiver diagram by the AGT relation. We first verify that it is…

High Energy Physics - Theory · Physics 2011-01-17 Kazunobu Maruyoshi , Futoshi Yagi

We introduce a new class of two(multi)-matrix models of positive Hermitean matrices coupled in a chain; the coupling is related to the Cauchy kernel and differs from the exponential coupling more commonly used in similar models. The…

Mathematical Physics · Physics 2009-11-13 M. Bertola , M. Gekhtman , J. Szmigielski
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