1997/04/04 by Alexey N. Kuznetsov∥, A. N. Kuznetsov, P. Tinyakov +1 · 3 citations
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #hep-ph
paper · pdf · doi:10.1016/s0370-2693(97)00628-x
published as Phys.Lett. B406 (1997) 76-82 · 11 pages, LaTeX, axodraw.sty
arxiv created 1997/04/04 · openalex publication_date 1997/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is shown that periodic instanton solutions may have bifurcations which qualitatively change the behaviour of the finite temperature transition rate. These bifurcations are studied numerically in a quantum mechanical model and in the massive two-dimensional sigma model with the Skyrme term. General rules which determine the behaviour of periodic instantons near bifurcations are derived and applied to the Electroweak Theory.