A nonperturbative test of nucleation calculations for strong phase transitions
arxiv(2024)
摘要
Nucleation rate computations are of broad importance in particle physics and
cosmology. Perturbative calculations are often used to compute the nucleation
rate Γ, but these are incomplete. We perform nonperturbative lattice
simulations of nucleation in a scalar field theory with a tree-level barrier,
computing a final result extrapolated to the thermodynamic and continuum
limits. Although the system in question should be well-described by a complete
one-loop perturbative calculation, we find only qualitative agreement with the
full perturbative result, with a 20
motivates further testing of the current nucleation paradigm.
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