Effective theory / model relation type

The target retains the degrees of freedom and interactions relevant below a stated scale or within a stated regime, while higher-energy or unresolved degrees of freedom from the source are integrated out, coarse-grained, or encoded in effective couplings.

Directed semantics

Every direct mAtlas edge is an authored source → target assertion of this type.

Term code: effective-theory
Source role: Has effective description
Target role: Effective description of
Direct relations in this release: 14
Predecessor-level policy: incoming
Prerequisite traversal: incoming

Machine-readable record

/data/latest/relation-types/effective-theory.json provides this definition and the IDs of every direct relation of this type.

A path may traverse an edge backwards for connectivity, but that never reverses the authored source-to-target assertion.