noun
renormalization group
Technical term in theoretical physics, especially quantum field theory and statistical mechanics. Refers to the mathematical apparatus that studies changes in a physical system as the scale of observation varies.
繰り込み群の手法は、臨界現象の解析に不可欠である。
The renormalization group method is essential for analyzing critical phenomena.
量子電磁力学では、繰り込み群方程式を用いて結合定数の変化を調べる。
In quantum electrodynamics, the renormalization group equation is used to study the running of the coupling constant.
Refers to the renormalization procedure itself, while 繰り込み群 is the group-theoretic framework that describes how parameters change with scale.
Compound of 繰り込み (renormalization) and 群 (group), a calque of the English term 'renormalization group'.