Pure $SU(2)$ gauge theory partition function and generalized Bessel kernel

Autor: Gavrylenko, P., Lisovyy, O.
Rok vydání: 2017
Předmět:
Druh dokumentu: Working Paper
Popis: We show that the dual partition function of the pure $\mathcal N=2$ $SU(2)$ gauge theory in the self-dual $\Omega$-background (a) is given by Fredholm determinant of a generalized Bessel kernel and (b) coincides with the tau function associated to the general solution of the Painlev\'e III equation of type $D_8$ (radial sine-Gordon equation). In particular, the principal minor expansion of the Fredholm determinant yields Nekrasov combinatorial sums over pairs of Young diagrams.
Comment: 20 pages, 6 figures
Databáze: arXiv