Cosmological Consequences of Superconducting String Networks

Abstract

We consider the cosmological consequences of a network of superconducting cosmic strings. For strong enough current the period of friction domination never ends. Instead a plasma scaling solution is reached. We demonstrate that this gives rise to a very different cosmology than the usual horizon scaling solution. In particular the string network gives rise to adistinct imprint on the microwave sky, giving non-Gaussian features on much smaller angular scales. It also gives rise to a filament structure in string wakes. Because of the presence of the string magnetocylinder, the string magnetic field cannot create a primordial magnetic field. Similarly, it evades nucleosynthesis constraints. We also show that strings formed at the supersymmetry breaking scale can create the required baryon asymmetry of the universe.

13 pages, PLB, accepted

References in corpus (5)

• CMB Anisotropy Induced by Cosmic Strings on Angular Scales $>15^{\prime }$
• Hybrid Inflation with Quasi-canonical Supergravity
• Primordial Magnetic Fields from Superconducting Cosmic Strings
• Friction Domination with Superconducting Strings
• Evolution of Superconducting String Currents

Cited by in corpus (6)

• Primordial magnetogenesis
• Cosmic Superstrings and Primordial Magnetogenesis
• The effect of extra dimensions on gravity wave bursts from cosmic string cusps
• Microwave Background Constraints on Decaying Defects
• Dynamical simulations of colliding superconducting strings
• PhD Thesis: String theory in the early universe