The Exact WKB for particle production: from baryogenesis to Hawking radiation

開催日時

2023/10/31 11:00 – 12:00

開催場所

ハイブリッド形式 : オンライン (Zoom) + セミナールーム(研究本館322)

講演者

松田智裕 教授(埼玉工業大学)

言語

English

詳細ページ

お問い合わせ

中野湧天/wnakano-AT-post.kek.jp


概要

Most particle production can be solved by approximate methods, but some problems cannot be solved without serious consideration of the Stokes phenomenon. One such particle production is baryon number production from rotating fields. Processes such as particle-antiparticle mixing increase the order of the differential equations to be solved, so new knowledge of ExactWKB, including Virtual Turning Point, is required. The other is particle production from a steady state. This problem includes the Schwinger effect, the Unruh effect and Hawking radiation. In particular, the Stokes phenomenon of the Unruh effect has been unsolved for 50 years. This talk shows how the Exact WKB can be used to solve these problems clearly.