The Origin of the Universe and the Arrow of Time


Formale Metadaten

Titel The Origin of the Universe and the Arrow of Time
Autor Sean Carroll
Herausgeber Fermi National Accelerator Laboratory (Fermilab)
Erscheinungsjahr 2009
Sprache Englisch

Inhaltliche Metadaten

Fachgebiet Physik
Abstract Over a century ago, Boltzmann and others provided a microscopic understanding for the tendency of entropy to increase. But this understanding relies ultimately on an empirical fact about cosmology: the early universe had very low entropy. Why was it like that? Cosmologist aspire to provide a dynamical explanation for the observed state of the universe, but have had very little to say about the dramatic asymmetry between early times and late times. I will argue that the search for a natural explanation for the observed breakdown of time-reversal symmetry in cosmology leads us directly to interesting conclusions about inflation, quantum gravity, and the multiverse.

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