具有完全动量依赖的重整化群流方程的解
Solutions of renormalization group flow equations with full momentum dependence
摘要：
我们证明了最近提出的非微扰重整化群的近似方案，使访问关联函数在其整个动量范围内的权力。我们数值求解该方案中得到的首阶流动方程，并计算临界时O（N）理论的二维和三维两点函数。以适度的数值代价获得了通用和非通用量的优秀结果。
英文摘要：
We demonstrate the power of a recently-proposed approximation scheme for the non-perturbative renormalization group that gives access to correlation functions over their full momentum range. We solve numerically the leading-order flow equations obtained within this scheme, and compute the two-point functions of the O(N) theories at criticality, in two and three dimensions. Excellent results are obtained for both universal and non-universal quantities at modest numerical cost.
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