Abstract:The early Universe might have undergone phase transitions at energy scales much higher than the one corresponding to the Grand Unified Theories (GUT) scales. At these higher energy scales, the transition at which gravity separated from all other interactions; the socalled Planck era, more massive strings called supermassive cosmic strings, could have been produced, with energy of about 1019 GeV . The dynamics of strings formed with this energy scale cannot be described by means of the weak-field approximation,… Show more
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