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We consider the compactifcation of 5d non-simply laced fractional quiver gauge theory constructed in arXiv:1705.04410. In contrast to the simply laced quivers, here two $\Omega$-background parameters play different roles, so that we can…

High Energy Physics - Theory · Physics 2018-07-12 Heng-Yu Chen , Taro Kimura

We study N=2 supersymmetric SU(2) gauge theories coupled to non-Lagrangian superconformal field theories induced by compactifying the six dimensional A_1 (2,0) theory on Riemann surfaces with irregular punctures. These are naturally…

High Energy Physics - Theory · Physics 2015-06-03 Giulio Bonelli , Kazunobu Maruyoshi , Alessandro Tanzini

For a wide variety of quantum potentials, including the textbook `instanton' examples of the periodic cosine and symmetric double-well potentials, the perturbative data coming from fluctuations about the vacuum saddle encodes all…

High Energy Physics - Theory · Physics 2017-06-23 Gokce Basar , Gerald V. Dunne , Mithat Unsal

We show that a quantum-mechanical N=2 supersymmetry is hidden in 4d mass spectrum of any gauge invariant theories with extra dimensions. The N=2 supercharges are explicitly constructed in terms of differential forms. The analysis can be…

High Energy Physics - Theory · Physics 2009-11-11 C. S. Lim , Tomoaki Nagasawa , Makoto Sakamoto , Hidenori Sonoda

A nonperturbative quantization procedure based on a nonassociative decomposition of quantum field operators on nonassociative constituents is considered. It is shown that such approach gives rise to quantum corrections by calculations of…

Mathematical Physics · Physics 2011-09-20 Vladimir Dzhunushaliev

We present the one-loop scalar field effective potential for the $N=2$ supersymmetric nonrelativistic self-interacting matter fields coupled to an Abelian Chern-Simons gauge field and for its generalization when bosonic matter fields are…

High Energy Physics - Theory · Physics 2007-05-23 D. Caenepeel , M. Leblanc

SU(2) gauge theory coupled to massless fermions in the adjoint representation is quantized in light-cone gauge by imposing the equal-time canonical algebra. The theory is defined on a space-time cylinder with "twisted" boundary conditions,…

High Energy Physics - Theory · Physics 2007-05-23 Eliana Vianello

We describe the magnetic phase of SU(N) $\mathcal{N}=2$ Super Yang-Mills theories in the self-dual Omega background in terms of a new class of multi-cut matrix models. These arise from a non-perturbative completion of topological strings in…

High Energy Physics - Theory · Physics 2017-06-08 Giulio Bonelli , Alba Grassi , Alessandro Tanzini

We reconsider string and domain wall central charges in N=2 supersymmetric gauge theories in four dimensions in presence of the Omega background in the Nekrasov-Shatashvili (NS) limit. Existence of these charges entails presence of the…

High Energy Physics - Theory · Physics 2013-04-09 Kseniya Bulycheva , Heng-yu Chen , Alexander Gorsky , Peter Koroteev

We analyze N=2 (perturbative and non-perturbative) corrections to the effective theory in type I orbifold models where a dual heterotic description is available. These corrections may play an important role in phenomenological scenarios.…

High Energy Physics - Theory · Physics 2008-11-26 P. G. Camara , E. Dudas

We argue that for a large class of N=1 supersymmetric gauge theories the effective superpotential as a function of the glueball chiral superfield is exactly given by a summation of planar diagrams of the same gauge theory. This perturbative…

High Energy Physics - Theory · Physics 2007-05-23 Robbert Dijkgraaf , Cumrun Vafa

We calculate gauge instanton corrections to a class of higher derivative string effective couplings introduced in [1]. We work in Type I string theory compactified on K3xT2 and realise gauge instantons in terms of D5-branes wrapping the…

High Energy Physics - Theory · Physics 2014-03-05 Ignatios Antoniadis , Ioannis Florakis , Stefan Hohenegger , K. S. Narain , Ahmad Zein Assi

In this lecture we give an elementary introduction to the natural realization of non-perturbative N=2 quantum field theories as a low energy limit of classical string theory. We review a systematic construction of six, five, and four…

High Energy Physics - Theory · Physics 2015-06-26 P. Mayr

We present a brief summary of exact results on the non-perturbative effective superpotential of N=1 supersymmetric gauge theories based on generalized Konishi anomaly equations. In particular we consider theories with classical gauge groups…

High Energy Physics - Theory · Physics 2015-06-26 Karl Landsteiner

We study four dimensional N=2 supersymmetric gauge theory in the Omega-background with the two dimensional N=2 super-Poincare invariance. We explain how this gauge theory provides the quantization of the classical integrable system…

High Energy Physics - Theory · Physics 2017-08-23 Nikita A. Nekrasov , Samson L. Shatashvili

The functional-integral quantization of non-Abelian gauge theories is affected by the Gribov problem at non-perturbative level: the requirement of preserving the supplementary conditions under gauge transformations leads to a non-linear…

High Energy Physics - Theory · Physics 2015-06-26 Giampiero Esposito , Diego N. Pelliccia , Francesco Zaccaria

We study the non-perturbative properties of N=2 super conformal field theories in four dimensions using localization techniques. In particular we consider SU(2) gauge theories, deformed by a generic epsilon-background, with four fundamental…

High Energy Physics - Theory · Physics 2015-06-12 Marco Billo , Marialuisa Frau , Laurent Gallot , Alberto Lerda , Igor Pesando

We consider pure SU(N) gauge theories defined on an orbifold lattice, analogous to the S^1/Z_2 gauge theory orbifolds of the continuum, which according to the perturbative analysis do not have a Higgs phase. Non-perturbatively the…

High Energy Physics - Lattice · Physics 2015-06-18 Nikos Irges , Francesco Knechtli

In this paper we analyse the non-hyperelliptic Seiberg-Witten curves derived from M-theory that encode the low energy solution of N=2 supersymmetric theories with product gauge groups. We consider the case of a SU(N_1)xSU(N_2) gauge theory…

High Energy Physics - Theory · Physics 2009-11-10 Marta Gomez-Reino

We study various non-perturbative approaches to the quantization of the Seiberg-Witten curve of ${\cal N}=2$, $SU(2)$ super Yang-Mills theory, which is closely related to the modified Mathieu operator. The first approach is based on the…

High Energy Physics - Theory · Physics 2020-08-26 Alba Grassi , Jie Gu , Marcos Marino