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Phase transitions in perturbative walking dynamics
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In this paper, we investigate the dynamics of the confinement-deconfinement phase transition in a toy model where the walking dynamics is realized perturbatively. We study the properties of the phase transition focusing on the possible cosmological signatures it can provide. Interestingly the model is well under perturbative control only when the mass of the lightest field - the dilaton/scalon is much lighter than the rest of the fields and the phase transition proceeds slowly leading to strong signals in the stochastic gravitational wave spectrum.
Forward citations
Cited by 4 Pith papers
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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.
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Localised Horizons and Holographic Thermodynamics: Supercooling in the 1/D Expansion
For a large class of holographic confining gauge theories far from conformality, the maximum supercooling equals half the squared speed of sound at the critical temperature, up to 1/D corrections.
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Domain Walls From Confining Bubbles: $SU(N_{c})$ Yang Mills at Finite $\theta$
A nonzero theta angle weakens supercooling in SU(Nc) Yang-Mills confinement and makes any resulting domain-wall gravitational-wave signal invisible except under severe fine-tuning.
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Populating dark sectors with relativistic bubble walls
Relativistic bubble walls can pair-produce dark matter much heavier than the phase transition scale, which then free-streams as warm dark matter.
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