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Talk49 min

Curvature perturbation from first-order phase transitions & A positive-definite formulation of tunneling

Ryusuke Jinno · CERN

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About

This talk is consists of two parts. In the first part I will talk about curvature perturbation produced in very strong first-order phase transitions. I will first explain super-hubble curvature perturbation based on 2311.16222, and then move on to hubble-scale curvature perturbation based on 2503.01962. In the second part I change the topic and talk about a new type of formulation of quantum tunneling that features positive-definite action based on an ongoing work..

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The talk

  1. Curvature perturbation from first-order phase transitions & A positive-definite formulation of tunneling 2025-08-29 · 49 min · CERN's player

Credits and licence

Institution
CERN
Department
TH institutes
Speaker
Ryusuke Jinno
Year
2025
Language
English
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
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