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.
The renormalization group method is essential for analyzing critical phenomena.
In quantum electrodynamics, the renormalization group equation is used to study the running of the coupling constant.
Standard kanji spelling for this physics term.
Variant spelling with the okurigana り omitted; less common but still used in technical contexts.
Compound of 繰り込み (renormalization) and 群 (group), a calque of the English term 'renormalization group'.