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arXiv · 1605.09155

Stable spherically symmetric monopole field background in a pure QCD

Youngman Kim·Bum-Hoon Lee·D. G. Pak·Takuya Tsukioka
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Abstract

We consider a stationary spherically symmetric monopole like solution with a finite energy density in a pure quantum chromodynamics (QCD). The solution can be treated as a static Wu-Yang monopole dressed in time dependent field corresponding to off-diagonal gluons. We have proved that such a stationary monopole field represents a background vacuum field of the QCD effective action which is stable against quantum gluon fluctuations. This resolves a long-standing problem of existence of a stable vacuum field in QCD and opens a new avenue towards microscopic theory of the vacuum.

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Youngman Kim, Bum-Hoon Lee, D. G. Pak, Takuya Tsukioka. 2016-05-30. Stable spherically symmetric monopole field background in a pure QCD. https://doi.org/10.1093/ptep/ptx187

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