Finite energy shifts in SU(n) supersymmetric Yang-Mills theory on T^3xR at weak coupling

Details Finite energy shifts in SU(n) supersymmetric Yang-Mills theory on T^3xR at weak coupling Finite energy shifts in SU(n) supersymmetric Yang-Mills theory on T^3xR at weak coupling

2009-12-08

arxiv.org/abs/0912.1556v4

Phys.Rev.D81:125018,2010

Physics

High Energy Physics

High Energy Physics - Theory

31 pages, 1 figure, v4 Minor changes, references corrected

Scientific paper

10.1103/PhysRevD.81.125018

We consider a semi-classical treatment, in the regime of weak gauge coupling, of supersymmetric Yang-Mills theory in a space-time of the form T^3xR with SU(n)/Z_n gauge group and a non-trivial gauge bundle. More specifically, we consider the theories obtained as power series expansions around a certain class of normalizable vacua of the classical theory, corresponding to isolated points in the moduli space of flat connections, and the perturbative corrections to the free energy eigenstates and eigenvalues in the weakly interacting theory. The perturbation theory construction of the interacting Hilbert space is complicated by the divergence of the norm of the interacting states. Consequently, the free and interacting Hilbert furnish unitarily inequivalent representation of the algebra of creation and annihilation operators of the quantum theory. We discuss a consistent redefinition of the Hilbert space norm to obtain the interacting Hilbert space and the properties of the interacting representation. In particular, we consider the lowest non-vanishing corrections to the free energy spectrum and discuss the crucial importance of supersymmetry for these corrections to be finite.

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