A Hubble-scale domain wall quintessence model produces anisotropic expansion but is tightly constrained by Planck CMB quadrupole limits and supernova data to a negligible contribution, favoring standard LambdaCDM.
Domain Walls as Dark Energy
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abstract
The possibility that the energy density of the Universe is dominated by a network of low-tension domain walls provides an alternative to the commonly discussed cosmological constant and scalar-field quintessence models of dark energy. We quantify the lower bound on the number density of the domain walls that follows from the observed near-isotropy of the cosmic microwave background radiation. This bound can be satisfied by a strongly frustrated domain wall network. No fine-tuning of the parameters of the underlying field theory model is required. We briefly outline the observational consequences of this model.
verdicts
UNVERDICTED 2representative citing papers
Bayesian forecasts for the Taiji detector constrain complex singlet model parameters through electroweak phase transition gravitational wave signals.
citing papers explorer
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Domain-wall Quintessence
A Hubble-scale domain wall quintessence model produces anisotropic expansion but is tightly constrained by Planck CMB quadrupole limits and supernova data to a negligible contribution, favoring standard LambdaCDM.
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Bayesian analysis of the complex singlet model with phase transition gravitational waves
Bayesian forecasts for the Taiji detector constrain complex singlet model parameters through electroweak phase transition gravitational wave signals.