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An effective field theory for nonrelativistic charged particles coupled to photons, organized in powers of velocity, 1/m, and the fine-structure constant.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
qed_to_nrqed
Relation type
Effective theory / model effective-theory
Direction
source → target
Endpoint roles
source: Has effective description; target: Effective description of
Authored annotation
low-velocity charged-particle EFT
Authored explanation
NRQED integrates out relativistic modes and expands in v/c, momentum over mass, and α.
How to interpret this 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.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
nrqed_to_atomicqed
Relation type
Describes / governs describes-governs
Direction
source → target
Endpoint roles
source: Describes / governs; target: Described / governed by
Authored annotation
bound-state radiative expansion
Authored explanation
NRQED organizes radiative, recoil, and relativistic corrections for light atomic bound states.
How to interpret this relation type
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.