CURVATURE ENERGY EFFECTS ON LARGE-SCALE INHOMOGENEITIES FROM THE COSMOLOGICAL QCD PHASE-TRANSITION

We study the curvature energy effects on large-scale inhomogeneities f rom the first-order quark-hadron phase transition in the early Univers e. We find that, when the curvature term is included in the bubble fre e energy, the average distance between bubbles nucleated in the phase transition is slightly reduced. However, for some QCD parameter values , the distance scale is calculated to be large enough to affect the pr imordial nucleosynthesis.