The evolution of circular loops of a cosmic string with periodic tension [PDF]
Leilin Wang, Hongbo ChengIn this paper the equation of circular loops of cosmic string with periodic tension is investigated in the Minkowski spacetime and Robertson-Walker universe respectively. We find that the cosmic string loops possessing this kind of time-varying tension will evolve to oscillate instead of collapsing to form a black hole if their initial radii are not small enough.View original: http://arxiv.org/abs/1206.2095
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