Dynamics of F/D networks: the role of bound states

Details Dynamics of F/D networks: the role of bound states Dynamics of F/D networks: the role of bound states

2008-06-19

arxiv.org/abs/0806.3219v1

JCAP 0808:038,2008

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, 13 figures

Scientific paper

10.1088/1475-7516/2008/08/038

We study, via numerical experiments, the role of bound states in the evolution of cosmic superstring networks, being composed by p F-strings, q D-strings and (p,q) bound states. We find robust evidence for scaling of all three components of the network, independently of initial conditions. The novelty of our numerical approach consists of having control over the initial abundance of bound states. This indeed allows us to identify the effect of bound states on the evolution of the network. Our studies also clearly show the existence of an additional energy loss mechanism, resulting to a lower overall string network energy, and thus scaling of the network. This new mechanism consists of the formation of bound states with an increasing length.

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