rather artificial. Its weight in the whole ensemble of the gluon field configurations with the constant scalar condensate $\langle g^2F_{\mu\nu}F_{\mu\nu}\rangle$ and the lumpy structured distribution of the topological charge density $\langle g^2\tilde F_{\mu\nu}F_{\mu\nu}\rangle$ is negligible. The entropy-energy balance implies that the typical configuration should be highly disordered (see Fig.\[Fig:kink\_network\]). Moreover, in the case of the planar domain wall the eigenvalue problem for the square integrable vector gauge fields $$\begin{aligned}
\label{vector}
\left[-D^2\delta_{\mu\nu}+2i\breve F_{\mu\nu}\right]Q_\nu=\lambda Q_\mu\end{aligned}$$ leads to the negative eigenvalues and corresponding tachyonic modes on the wall where $\tilde F_{\mu\nu}F_{\mu\nu}=0$. This is a well-known instability of the Nielsen-Olesen type [@Nielsen:1978rm]. The presence of the tachyonic mode is due to the three infinite dimensions of the planar domain wall hypersurface. One can expect that finite size of boundaries between lumps in the typical kink network configuration, Fig.\[Fig:kink\_network\], removes the tachyonic modes. This is manifestly exemplified in the next section where the color charged field eigenvalues and modes are studied for thick cylindrical domain wall junction. The relatively stable defect of this type can occur in the ensemble of confining gluon fields due to the influence of the strong electromagnetic fields on the QCD vacuum structure.

The spectrum of color charged quasiparticles trapped in 