A hint of renormalization
Abstract
An elementary introduction to perturbative renormalization and renormalization group is presented. No prior knowledge of field theory is necessary because we do not refer to a particular physical theory. We are thus able to disentangle what is specific to field theory and what is intrinsic to renormalization. We link the general arguments and results to real phenomena encountered in particle physics and statistical mechanics.
 Publication:

American Journal of Physics
 Pub Date:
 February 2004
 DOI:
 10.1119/1.1624112
 arXiv:
 arXiv:hepth/0212049
 Bibcode:
 2004AmJPh..72..170D
 Keywords:

 01.50.i;
 03.65.Fd;
 02.20.a;
 Educational aids;
 Algebraic methods;
 Group theory;
 High Energy Physics  Theory;
 Condensed Matter  Statistical Mechanics
 EPrint:
 17 pages, pedagogical article