Radiative corrections from an asymmetric Dirac fermion generate a bias that collapses domain walls, producing gravitational waves that encode the asymmetry level and temperature.
Evading the cosmological domain wall problem
9 Pith papers cite this work. Polarity classification is still indexing.
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abstract
Discrete symmetries are commonplace in field theoretical models but pose a severe problem for cosmology since they lead to the formation of domain walls during spontaneous symmetry breaking in the early universe. However if one of the vacuua is favoured over the others, either energetically, or because of initial conditions, it will eventually come to dominate the universe. Using numerical methods, we study the evolution of the domain wall network for a variety of field configurations in two and three dimensions and quantify the rate at which the walls disappear. Good agreement is found with a recent analytic estimate of the termination of the scaling regime of the wall network.
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Derives dynamical criterion for biased domain wall formation by evaluating p_fv at freeze-out temperature T_fo, producing stricter condition than conventional static threshold and consistency condition T_fo > T_ann.
A new scalar induces transient bias to decay CP domain walls from spontaneous CP violation while its oscillations constitute dark matter.
Tensor perturbations from FOPT and domain-wall sources are claimed to induce second-order scalar perturbations large enough to form primordial black holes, potentially all of the dark matter.
Lepton parity stabilizes a Majorana fermion dark matter candidate while an accidental Z2 symmetry in the scalar potential creates unstable domain walls whose decay produces observable gravitational waves.
High-quality axion models with N_DW=1 and dark matter abundance requirement restrict the gauge breaking scale to 1.6e11-1e16 GeV, yielding a band of gravitational wave signals from two-step phase transitions consistent with current observations.
In an SU(3) non-Abelian gauge theory, magnetic monopole number density is suppressed for small bias parameter ε of domain walls, allowing few monopoles to survive.
Small bare fermion masses generate a bias via radiative corrections that triggers annihilation of multi-wall cosmic string networks in gravitationally broken global U(1) models, illustrated in a majoron framework with right-handed neutrinos.
Majoron dark matter is viable for sub-MeV masses in high-scale seesaw models with thermal leptogenesis, produced via misalignment and cosmic strings in pre- and post-inflationary scenarios and constrained by CMB, X-ray, and gravitational wave observations.
citing papers explorer
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Imprint of matter-antimatter asymmetry on collapsing domain walls
Radiative corrections from an asymmetric Dirac fermion generate a bias that collapses domain walls, producing gravitational waves that encode the asymmetry level and temperature.
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Dynamical criterion for biased domain-wall formation
Derives dynamical criterion for biased domain wall formation by evaluating p_fv at freeze-out temperature T_fo, producing stricter condition than conventional static threshold and consistency condition T_fo > T_ann.
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Transient Bias for CP Domain Wall Decay and Dark Matter
A new scalar induces transient bias to decay CP domain walls from spontaneous CP violation while its oscillations constitute dark matter.
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Primordial Black Hole from Tensor-induced Density Fluctuation: First-order Phase Transitions and Domain Walls
Tensor perturbations from FOPT and domain-wall sources are claimed to induce second-order scalar perturbations large enough to form primordial black holes, potentially all of the dark matter.
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Lepton parity dark matter and naturally unstable domain walls
Lepton parity stabilizes a Majorana fermion dark matter candidate while an accidental Z2 symmetry in the scalar potential creates unstable domain walls whose decay produces observable gravitational waves.
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Probing High-Quality Axions with Gravitational Waves
High-quality axion models with N_DW=1 and dark matter abundance requirement restrict the gauge breaking scale to 1.6e11-1e16 GeV, yielding a band of gravitational wave signals from two-step phase transitions consistent with current observations.
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Domain walls and magnetic monopoles in Grand Unified Models
In an SU(3) non-Abelian gauge theory, magnetic monopole number density is suppressed for small bias parameter ε of domain walls, allowing few monopoles to survive.
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A New Route to the Annihilation of Multi-Wall String Topological Configurations
Small bare fermion masses generate a bias via radiative corrections that triggers annihilation of multi-wall cosmic string networks in gravitationally broken global U(1) models, illustrated in a majoron framework with right-handed neutrinos.
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Majoron Dark Matter, High-Scale Seesaw, and Leptogenesis
Majoron dark matter is viable for sub-MeV masses in high-scale seesaw models with thermal leptogenesis, produced via misalignment and cosmic strings in pre- and post-inflationary scenarios and constrained by CMB, X-ray, and gravitational wave observations.