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Unified model for vortex-string network evolution | | C.J.A.P. Martins
; J.N. Moore
; E.P.S. Shellard
; | | Date: |
21 Oct 2003 | | Journal: | Phys.Rev.Lett. 92 (2004) 251601 | | Subject: | hep-ph astro-ph cond-mat gr-qc hep-th | | Affiliation: | 1,2,3), J.N. Moore and E.P.S. Shellard ( CAUP, Porto; DAMTP, Cambridge; IAP, Paris | | 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. | | Source: | arXiv, hep-ph/0310255 | | Services: | Forum | Review | PDF | Favorites | |
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