Five-phonon collisions drive the phonon gas from partial equilibrium (nonzero chemical potential) to full thermochemical equilibrium, with fugacity rising as t to the 4/5 at early times and exponentially at late times.
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2 Pith papers cite this work, alongside 163 external citations. Polarity classification is still indexing.
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Spacetime-symmetry-breaking Goldstone EFTs systematically describe bulk and localized excitations of solids, fluids, and superfluids, with new thermodynamic identifications and corrected scattering rates.
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Phonon number relaxation in a 3D superfluid with a concave acoustic branch
Five-phonon collisions drive the phonon gas from partial equilibrium (nonzero chemical potential) to full thermochemical equilibrium, with fugacity rising as t to the 4/5 at early times and exponentially at late times.
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Effective Field Theories for Material Media
Spacetime-symmetry-breaking Goldstone EFTs systematically describe bulk and localized excitations of solids, fluids, and superfluids, with new thermodynamic identifications and corrected scattering rates.