Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 91: Special Session: Quantum Information Concepts in Astrophysics

FM 91.1: Invited Talk

Freitag, 27. September 2019, 11:00–11:40, 2006

Information Theoretic Methods in Inflationary Cosmology — •Achim Kempf — University of Waterloo, Canada

At the Planck scale, and close to a big bang, the conventional notions of space-time and matter are widely expected to reach the very limit of their range of applicability. For this reason, the use of quantum information-theoretic tools could be useful in these circumstances: no matter how counter intuitive the phenomena at the Planck scale are, it should always make sense to quantify how much information and how much information processing is involved. I will first review related information-theoretic concepts such as covariant bandlimitation. I will then focus on the prospect that information-theoretically-described Planck scale physics has left an imprint in inflation and that it has, therefore, possibly left an observable imprint in the cosmic microwave background and in structure formation.