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MENTAL MODEL · M3137

Renormalization

Renormalization
SystemsHigh supportComplexity Science
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

A mathematical technique for dealing with infinities in quantum field theory. By redefining physical parameters (such as mass and charge), the infinities are absorbed into these redefinitions, yielding finite, observable physical quantities.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Simplification of complex systems. In social science, it inspires us to identify and eliminate 'scale dependence'—those spurious regularities that appear only at specific observation scales—and to seek true mechanisms across scales.

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Renormalization is a technique for handling divergences (infinities) in quantum field theory: it absorbs unobservable infinities into measurable parameters and describes the effective theory with a scale-dependent 'running coupling'.

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/RenormalizationZH · Explicit
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