1992/09/22 by Patrick Labelle, Labelle, Patrick
Materials Science · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Organic and Molecular Conductors Research #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9209266
11 pages (4 figs included as comments in the LaTeX file), CLNS 92/1161
arxiv created 1992/09/22 · openalex publication_date 1992/09/22 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This is a pedagogical introduction to NRQED, a low enery approximation of QED which can be made to reproduce QED to an arbitrary precision. It is especially useful when applied to nonrelativistic bound states. We start by explaining why QED is so difficult to apply to nr bound states, why NRQED makes it much simpler and then proceed to do an explicit calculation. We also briefly discuss what this can teach us about ``new'' physics beyond QED. This is based on a talk given at the XIV MRST meeting in Toronto.