论文标题
（1+1）维
Extended multi-scalar field theories in (1+1) dimensions
论文作者
论文摘要
我们介绍了支持BPS（BOGOMOL'NYI-PRASAD--SOMMERFIELD）扭结解决方案的（1+1）维度的某些多尺度场理论的明确构造。该结构基于所谓的扩展方法的思想。特别是，从众所周知的单尺度田地理论之间的非平凡耦合中明确构建了几种新的有趣的两刻度和三尺度场理论。原始单场系统的BPS解决方案也将是通过构造的多尺度系统的BPS解决方案，因此我们将分析其线性稳定性的构造模型的线性稳定性。
We present the explicit construction of some multi-scalar field theories in (1+1) dimensions supporting BPS (Bogomol'nyi--Prasad--Sommerfield) kink solutions. The construction is based on the ideas of the so-called extension method. In particular, several new interesting two-scalar and three-scalar field theories are explicitly constructed from non-trivial couplings between well-known one-scalar field theories. The BPS solutions of the original one-field systems will be also BPS solutions of the multi-scalar system by construction, and therefore we will analyse their linear stability properties for the constructed models.
