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The regularization and determination of the Yang-Mills vacuum wave functional in three dimensions at \(\mathcal{O}(e^2)\). (English) Zbl 1284.81211

Summary: We complete the computation of the Yang-Mills vacuum wave functional in three dimensions at weak coupling with \(\mathcal{O}(e^2)\) precision. We use two different methods to solve the functional Schrödinger equation. One of them generalizes to \(\mathcal{O}(e^2)\) the method followed by B. F. Hatfield at \(\mathcal{O}(e)\) [Phys. Lett. B 147, No. 6, 435–440 (1984)]. The other uses the weak coupling version of the gauge invariant formulation of the Schrödinger equation and the ground-state wave functional followed by D. Karabali, V. P. Nair and A. Yelnikov [ibid. 824, No. 3, 387–414 (2010; Zbl 1196.81178)]. These methods need to be carefully regularized to yield correct results. This is done in this paper with full detail.

MSC:

81T13 Yang-Mills and other gauge theories in quantum field theory
81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics

Citations:

Zbl 1196.81178

References:

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