“School of Astronomy”
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| Paper IPM / Astronomy / 11228 |
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In this paper the collision of two cosmic string loops is studied. After collision junctions are formed and
the loops are entangled. We show that after their formation the junctions start to unzip and the loops
disentangle. This analysis provides a theoretical understanding of the unzipping effect observed in
numerical simulations of a network of cosmic strings with more than one type of cosmic strings. The
unzipping phenomena have important effects in the evolution of cosmic string networks when junctions
are formed upon collision, such as in a network of cosmic superstrings.
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