Cosmological evolution of cosmic string loops

摘要: The existence of a scaling evolution for cosmic string loops in an expanding universe is demonstrated the first time by means numerical simulations. In contrast with what usually assumed, this result does not rely on any gravitational back reaction effect and has been observed as small few thousandths size horizon. We give energy number densities expected both radiation matter eras. Moreover, we quantify previous claims influence network initial conditions formation numerically unresolved showing that they only concern transient relaxation regime. Some cosmological consequences are discussed.