Reduction of Coupling Parameters in Quantum Field Theories
Abstract
A concise survey is given of the general method of reduction in the number of coupling parameters. Theories with several independent couplings are related to a set of theories with a single coupling. The reduced theories may or may not have particular symmetries. A few have asymptotic power series expansions, others contain noninteger powers and/or logarithmic factors. An example is given with two power series solutions, one with N = 2 Supersymmetry, and one with no known symmetry. In a second example, the reduced Yukawa coupling of the superpotential in a dual magnetic supersymmetric gauge theory is uniquely given by the square of the magnetic gauge coupling with a known factor.
 Publication:

arXiv eprints
 Pub Date:
 December 2000
 arXiv:
 arXiv:hepth/0012162
 Bibcode:
 2000hep.th...12162O
 Keywords:

 High Energy Physics  Theory
 EPrint:
 7 pages, latex, for the Encyclopedia of Supersymmetry, Kluwer