Shifman-Voloshin孤子的真空极化能量
Vacuum polarization energy of the Shifman-Voloshin soliton
摘要：
利用谱方法计算了一维双标量场模型中孤子组态的真空极化能量。第二个场是传统的$ϕ^4$扭结孤子模型的扩展。我们发现，真空极化能量不稳定的孤子，除非场具有相同的质量。在这种情况下，该模型等效于两个独立的$ϕ^4$模型。
英文摘要：
We compute the vacuum polarization energy of soliton configurations in a model with two scalar fields in one space dimension using spectral methods. The second field represents an extension of the conventional $ϕ^4$ kink soliton model. We find that the vacuum polarization energy destabilizes the soliton except when the fields have identical masses. In that case the model is equivalent to two independent $ϕ^4$ models.
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