From a quantum world to our classical Universe
General Relativity and Quantum Cosmology
2025-03-25 v1 Cosmology and Nongalactic Astrophysics
Quantum Physics
Abstract
Modern cosmological theories invoke the idea that all structure in the Universe originates from quantum fluctuations. Understanding the quantum-to-classical transition for these fluctuations is of central importance not only for the foundations of quantum theory, but also for observational astronomy. In my contribution, I review the essential features of this transition, emphasizing in particular the role of Alexei Starobinsky.
Cite
@article{arxiv.2503.18499,
title = {From a quantum world to our classical Universe},
author = {Claus Kiefer},
journal= {arXiv preprint arXiv:2503.18499},
year = {2025}
}
Comments
20 pages, 8 figures, invited contribution to a book in memory of Alexei Starobinsky, edited by A. Barvinsky and A. Kamenshchik