Date
June 19 (Mon) at 10:00 - June 20 (Tue) at 19:00, 2023 (JST)
Speaker
  • Takahiro Tanaka (Professor, Division of Physics and Astronomy, Graduate School of Science, Kyoto University)
Language
English
Host
Ryo Namba

In this lecture we will start with the general framework to analyse the density perturbation in the inflationary universe. Then, we will introduce various infrared (IR) phenomena, including IR divergences, delta N formalism and consistency relation. The underlying symmetry originally coming from 3D diffeomorphism invariance leads us to a harmonic and unified understanding of these phenomena.

Program:

June 19
10:00 - 10:15 Registration and reception (with coffee)
10:15 - 11:45 Lecture 1
11:45 - 13:30 Lunch & coffee break
13:30 - 15:00 Lecture 2
15:00 - 16:00 Coffee break
16:00 - 17:30 Lecture 3
17:45 - 18:30 Short talk session

June 20
10:00 - 10:15 Reception (with coffee)
10:15 - 11:45 Lecture 4
11:45 - 13:30 Lunch & coffee break
13:30 - 15:00 Lecture 5
15:00 - 16:00 Coffee break
16:00 - 17:30 Lecture 6
17:30 - 18:30 Discussions & Closing

The lecture would consist of the following sections.

  1. Quantum field in curved spacetime
  2. General introduction to inflationary cosmology
  3. Cosmological perturbation during inflation
  4. Infrared Phenomena of Field Theory in the inflationary universe
  5. Large gauge transformation and infrared regularity

This is a closed event for scientists. Non-scientists are not allowed to attend. All scientists, including those outside RIKEN, are welcome to attend, please register using the registration form.

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