Table 1
Summary of numerical simulation results a for the string density parameter ζ defined in Eq. (5).
| ζ | |||||
|
|
|||||
| Epoch | MS | RSB | BOS | MSM | BHKU |
|
|
|||||
| Radiation ............ | 11.5 | 9.5 | 11.0 | 5.0 | 3.8 |
| Matter ............... | 3.0 | 3.2 | 3.7 | 1.5 | 1.3 |
Notes. The Nambu-Goto string simulations are respectively labelled as MS (Martins & Shellard 2006), RSB (Ringeval et al. 2007), and BOS (Blanco-Pillado et al. 2011). This is contrasted with the much lower density results from lattice field theory simulations of vortex-strings labelled as MSM (Moore et al. 2002) and BHKU (Bevis et al. 2007b).
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