论文标题
某些QFT模型的Schwinger-Dyson类型方程
Schwinger-Dyson type equations for some QFT models
论文作者
论文摘要
在QED中广泛使用了连接免费和全绿色功能和顶点部分的Schwinger-Dyson方程，用于在不同条件下查找完整的绿色功能。毫无疑问，相同的方法应导致有关其他QFT模型的许多有用信息。在这项工作中，我们提出了一些基于变化方程的技术，以有效作用，以在QFT模型（例如非线性Sigma模型和标量场理论）中得出许多不同的Schwinger-Dyson类型方程。
The Schwinger-Dyson equations connecting free and full Green functions and vertex parts widely were used in QED for finding full Green functions under different conditions. Undoubtedly, the same approach should leads to derivation of many useful information about other models of QFT. In this work we present some technique based on variational equations for effective action to derive many different Schwinger-Dyson type equations in QFT models such as nonlinear sigma model and scalar field theory.
