Coarse graining and first order phase transitions

Abstract

We discuss the dependence of the coarse grained free energy and the classical interface tension on the coarse graining scale $k$. A stable range appears only if the renormalized dimensionless couplings at the critical temperature are small. This gives a quantitative criterion for the validity of computations within Langer's theory of spontaneous bubble nucleation.

14 pages, 5 figures

References in corpus (2)

• Exact evolution equation for the effective potential
• Gauge Invariance, the Quantum Action Principle, and the Renormalization Group

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