منابع مشابه
The Evolution of Cosmic Strings*
The evolution of a system of cosmic strings is studied using an extended version of an analytic formalism introduced by Kibble. It is shown that, in a radiation dominated universe, the fate of the string system depends sensitively on the fate of the closed loops that are produced by the interactions of very long strings. The strings can be prevented from dominating the energy density of the uni...
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The evolution of a system of cosmic strings is studied following an analytic model introduced by Kibble and developed in a previous paper. The properties of a scaling solution in the radiation dominated era are studied in detail, and it is shown that the conclusions of the previous paper are not sensitive to changes in the model for loop fragmentation. The scaling solution is also compared with...
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We study the formation of D and F -cosmic strings in D-brane annihilation after brane inflation. We show that D-string formation by quantum de Sitter fluctuations is severely suppressed, due to suppression of RR field fluctuations in compact dimensions. We discuss the resonant mechanism of production of D and F -strings, which are formed as magnetic and electric flux tubes of the two orthogonal...
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In t his paper we show some pr eliminary resu lts of simulat ions wit h a population of bit st r ings . We present t he ideas of our model and po int out the difficulti es in imp lem enting t hem . Alt hough an open evolut ion is one of the final aims , we ca n present some interesting resu lts wit h fini t e and even very small systems. One impor tant resu lt is t he evidence t hat introducing...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2016
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.94.106007