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Properties of the SU(N_c) Yang-Mills vacuum state

Victor Chernyak
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Abstract

The asymptotic behaviour of the vacuum energy density, ${\bar E}(θ)$, at $θ\ra \pm i \infty$ is found out. A new interpretation and a qualitative discussion of the ${\bar E}(θ)$ behaviour are presented. It is emphasized that the vacuum is doubly degenerate at $θ=π$, and the quark electric string can terminate on the domain wall interpolating between these two vacua. The potential of the monopole field condensing in the Yang-Mills vacuum is obtained.

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Victor Chernyak. 1999-03-18. Properties of the SU(N_c) Yang-Mills vacuum state. https://arxiv.org/abs/hep-th/9808092

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