2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41321Using the liquid instanton model continued into Minkowski space and modified for finite temperature, the energy momentum tensor and the surface tension for buble walls during the QCD phase transition are derived. The resulting surface tension is in agreement with lattice calculations. Application to bubble collisions is discussed.8 pages, 1 figure, revtex, revised to give more details of the model and relationship to other recent researchHigh Energy Physics - Phenomenologytext