The Universe Before the Big Bang The Cosmological Background of Gravitational Radiation (P2) A too copious production of particles may present some disadvantages, however. The resulting radiation may not satisfy present experimental constraints, and may even be inconsistent with the cosmological model itself. In fact, the energy of the resulting particles could be large enough … Read more
The Universe Before the Big Bang The Cosmological Background of Gravitational Radiation (P3) Amongst all those alternative backgrounds, a very intense one could be associated with the gravitational radiation produced by what are known as topological defects, i.e., geometric configurations characterized by particular symmetry properties: spherical symmetry for monopoles, cylindrical symmetry for cosmic strings, planar … Read more
The Universe Before the Big Bang The Cosmological Background of Gravitational Radiation (P1) There exist a number of physical effects characterizing the various models of the primordial Universe, and allowing us to discriminate between the different scenarios. All these effects are linked more or less directly to the radiation production which characterizes the transition from … Read more
