High Energy Physics - Theory
[Submitted on 25 Jun 2007 (v1), last revised 7 Dec 2007 (this version, v3)]
Title:Numerical experiments with p F- and q D-strings: the formation of (p,q) bound states
View PDFAbstract: We investigate the behaviour of (p,q) string networks, focusing on two aspects: (1) modelling more realistic (p,q) string networks than the Z_N networks used so far and (2) investigating the effect of long-range interactions on the evolution of the network. We model the network with no long-range interactions using two sets of fields, complex scalars coupled to gauge fields, with a potential chosen such that the two types of strings will form bound states. This way we can model junctions of 3 strings with different tension; in Z_N models used so far in simulations all the strings have identical tensions. In order to introduce long-range interactions we also study a network in which one of the scalars forms global strings. We observe that in the absence of long-range interactions the formation of bound states has a significant influence on the evolution of the network. When long-range interactions are turned on the bound states are short-lived and have a minimal effect on the network evolution.
Submission history
From: Horace Stoica [view email][v1] Mon, 25 Jun 2007 15:01:47 UTC (485 KB)
[v2] Tue, 26 Jun 2007 10:24:27 UTC (476 KB)
[v3] Fri, 7 Dec 2007 15:05:49 UTC (489 KB)
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