Starting from a simplified model involving the interactions between co/our quark fields, colour-SU(3) gauge fields, and colour scalar fields, it is shown, to the lowest-order approximation in h, that the vacuum expectation value of the gauge fields is equivalent, mathematically, to the vacuum expectation value of the scalar fields. Based on this relationship, a soliton solution of the gauge fields is given by solving the Euler equation of the scalar fields.
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