Non-relativistic quantum electrodynamics

Short description: Low energy limit of quantum electrodynamics

Non-relativistic quantum electrodynamics (NRQED) is a low-energy approximation of quantum electrodynamics which describes the interaction of (non-relativistic, i.e. moving at speeds much smaller than the speed of light) spin one-half particles (e.g., electrons) with the quantized electromagnetic field.

NRQED is an effective field theory suitable for calculations in atomic and molecular physics, for example for computing QED corrections to bound energy levels of atoms and molecules.

## References

* Caswell, W.E.; Lepage, G.P. (1986). "Effective lagrangians for bound state problems in QED, QCD, and other field theories". Physics Letters B (Elsevier BV) 167 (4): 437–442. doi:10.1016/0370-2693(86)91297-9. ISSN 0370-2693. Bibcode: 1986PhLB..167..437C.
* Labelle, Patrick (1992). NRQED in Bound States: Applying Renormalization to an Effective Field Theory. Bibcode: 1992hep.ph....9266L.

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Quantum electrodynamics

* Anomalous magnetic dipole moment
* Bhabha scattering
* Bremsstrahlung
* Compton scattering
* Dual photon
* Electron
* Feynman diagram
* Feynman slash notation
* Gupta–Bleuler formalism
* Lamb shift
* Møller scattering
* Path integral formulation
* Photon
* Positron
* Positronium
* Probability amplitude
* Propagator
* QED vacuum
* Self-energy
* Vacuum polarization
* Vertex function
* Virtual particles
* Ward–Takahashi identity
* ξ gauge

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