Alejandro Perez Rodriguez - Quantum and classical perturbations from inflation скачать в хорошем качестве

Alejandro Perez Rodriguez - Quantum and classical perturbations from inflation

Abstract: One of the key predictions of the inflationary paradigm is that the initial conditions for the evolution of cosmological inhomogeneities are set by quantum fluctuations naturally arising during inflation. In the literature, the treatment of such perturbations often involves assumptions or simplifications about their nature, particularly regarding their degree of classicalisation and phenomenological consequences of their quantum origin. In this talk, we clarify several formal aspects of the evolution and statistics of quantum and classical fields during the inflationary era. We then discuss the phenomenological implications of this distinction and its impact on constraints for early universe cosmology. Based on work in progress with Guillermo Ballesteros and Jesus Gambin Egea