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How to simulate global cosmic strings with large string tension
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Global string networks may be relevant in axion production in the early Universe, as well as other cosmological scenarios. Such networks contain a large hierarchy of scales between the string core scale and the Hubble scale, log(f/H) around 70, which influences the network dynamics by giving the strings large tensions T = pi f^2 log(f/H). We present a new numerical approach to simulate such global string networks, capturing the tension without an exponentially large lattice.
Forward citations
Cited by 6 Pith papers
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The scaling density of axion strings
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The landscape of QCD axion models
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