1997/11/26 by Yu. I. Shil'nov
Physics and Astronomy · #hep-th
published as Published in the Proceedings of the Conference: "Beyond the Standard Model: From Theory to Experiment" (World Scientific, 1998, Singapore), P. 231-238. · 8 pages, 4 figures, LaTeX. Talk presented at the International Workshop "Beyond the Standard Model: from Theory to Experiment" in Valencia, Spain, October 13-17, 1997
arxiv created 1997/11/26 · arxiv updated 2009/11/30
An investigation of the Nambu-Jona-Lasinio model with external constant electromagnetic and weak gravitational fields is carried out in three- and four-dimensional spacetimes. The effective potential of the composite bifermionic fields is calculated keeping terms linear in the curvature, while the electromagnetic field effect is treated exactly by means of the proper-time formalism. Numerical simulations of the dynamical symmetry breaking phenomenon accompanied by some phase transitions are presented.