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Unified model for vortex-string network evolution

2 Pith papers cite this work. Polarity classification is still indexing.

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abstract

We describe and numerically test the velocity-dependent one-scale (VOS) string evolution model, a simple analytic approach describing a string network with the averaged correlation length and velocity. We show that it accurately reproduces the large-scale behaviour (in particular the scaling laws) of numerical simulations of both Goto-Nambu and field theory string networks. We explicitly demonstrate the relation between the high-energy physics approach and the damped and non-relativistic limits which are relevant for condensed matter physics. We also reproduce experimental results in this context and show that the vortex-string density is significantly reduced by loop production, an effect not included in the usual `coarse-grained' approach.

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gr-qc 1 hep-ph 1

years

2023 1 2020 1

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UNVERDICTED 2

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The landscape of QCD axion models

hep-ph · 2020-03-02 · unverdicted · novelty 2.0

Review classifies QCD axion models extending the standard mass-coupling window and updates bounds from cosmology, astrophysics, and experiments.

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