the start of the universe

The Universe Before the Big Bang String Theory, Duality, and the Primordial Universe For anybody reading the introduction, there will no doubt have been important questions which arise spontaneously and are left unanswered. For instance, why does what we have called the “pre- Big Bang scenario” emerge within string theory and not within the classical … Read more

The Universe Before the Big Bang String Theory, Duality, and the Primordial Universe After this discussion, it is probably more evident to the reader why the existence of cosmological solutions that expand with increasing curvature is a peculiar property of string theory: the appearance of these solutions, as well as their close link to the … Read more