1994/09/27 by H. Leutwyler, Leutwyler, H.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9409422
arxiv created 1994/09/27 · arxiv updated 2009/11/30
The paper concerns the effective field theory methods used to study the low energy structure of systems with a spontaneously broken symmetry. I first explain how the method works in the context of quantum chromodynamics and then discuss a few general aspects, related to the universality of effective theories. In particular, I compare some of the effective field theories used in condensed matter physics with those relevant for particle physics. (Talk given at the Bose Conference, Jan.94, Calcutta, BUTP 94/17)