论文标题
来自功能重新归一化组的新型移位对称普遍性类别的证据
Evidence for a novel shift-symmetric universality class from the functional renormalization group
论文作者
论文摘要
Wetterich's方程提供了一种强大的工具，可用于研究具有量子标度不变性的重新归一化组固定点的存在和通用性能。在最近关于渐近标量理论的近期著作中，我们开发了一种新颖的近似方案，该方案将功能性重归于组的方程式投射到动力学项的函数上。我们的分析将此投影应用于标量和量规场，确定了具有非常特殊稳定系数的新通用类。讨论了我们发现在渐近安全的重力系统系统中的含义。
Wetterich's equation provides a powerful tool for investigating the existence and universal properties of renormalization group fixed points exhibiting quantum scale invariance. Motivated by recent works on asymptotically safe scalar-tensor theories, we develop a novel approximation scheme which projects the functional renormalization group equation onto functions of the kinetic term. Applying this projection to scalars and gauge fields, our analysis identifies a new universality class with a very special spectrum of stability coefficients. The implications of our findings in the context of asymptotically safe gravity-matter systems are discussed.
