Constant-velocity spherical bubble walls radiate massive scalars until the wall's rest-frame curvature exceeds the particle Compton wavelength, a mechanism that can dominate freeze-in production of axion-like particles.
The confined-deconfined surface tension in SU(N) gauge theories at large N
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We present results from an investigation of the $N$-dependency of the confined-deconfined interface tension and latent heat in pure SU($N$) gauge theory at large $N$. The interface tension is determined by measuring the transverse fluctuations of the phase interface on large lattices with coexisting confined and deconfined phases. We observe unambiguously that both the interface tension and latent heat scale as $N^2$ at large $N$.
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Abundant production of scalars and axions from phase transition bubble expansion
Constant-velocity spherical bubble walls radiate massive scalars until the wall's rest-frame curvature exceeds the particle Compton wavelength, a mechanism that can dominate freeze-in production of axion-like particles.