https://htsod.github.io/tags/renormalization-group/ Recent content in Renormalization Group on ButterCat https://htsod.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E https://htsod.github.io/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E Hugo -- 0.123.7 en Fri, 21 Jul 2023 00:00:00 +0000 https://htsod.github.io/posts/rg_method/ Sun, 11 Jun 2023 00:00:00 +0000 https://htsod.github.io/posts/rg_method/ Renormalization Group Approach in Dynamical System The renormalization group (RG) method is an approximation technique initially developed for solving strongly interacting many-body problems in quantum field theory, where perturbative solutions deviate from the actual solutions. The fundamental concept of the renormalization group approach is to eliminate irrelevant degrees of freedom in a physical system while preserving its essential characteristics ( Citation: P. Kopietz, 2010 P. Kopietz,  F.  (2010).   Introduction to the Functional Renormalization Group (1).