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The mass gap problem for the Yang-Mills Field

A. Sevostyanov
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Abstract

We consider the reduced Hamiltonian of the Yang-Mills field on $\mathbb{R}^4$ equipped with a Lorentzian metric. We show that the secondary quantized principal term $H_0$ of the Taylor expansion of this Hamiltonian at the lowest energy point has a mass gap if and only if zero is not a point of the spectrum of the auxiliary self-adjoint operator ${\rm curl}=*d$ defined on the space of one-forms $ω$ on $\mathbb{R}^3$ satisfying the condition ${\rm div}~ ω=*d*ω=0$, where $*$ is the Hodge star operator associated to a metric on $\mathbb{R}^3$ and $d$ is the exterior differential. In this case the classical lowest energy point of the reduced configuration space is a non-degenerate critical point of the potential energy term of the reduced Hamiltonian of the Yang-Mills field, in the sense of Palais.

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A. Sevostyanov. 2019-06-21. The mass gap problem for the Yang-Mills Field. https://arxiv.org/abs/math-ph/0407004

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