理論セミナー/Dr. Pascal Naidon

  • 分類 理論セミナー
  • 開始 2016/09/07(水)13:00
  • 終了 2016/09/07(水)14:00
  • 会場 研究本館1階会議室3
  • 講演タイトル From the Yukawa to the Efimov attraction
  • 講演者 Dr. Pascal Naidon (RIKEN)
  • 言語 英語/English
  • 連絡先 鎌野/ kamano-AT-post.kek.jp
  • ウェブサイト
  • 食堂・売店 利用予定なし/0

概要

The Yukawa attraction (screened 1/r interaction) is known to arise between two particles exchanging bosons, such as nucleons exchanging mesons. On the other hand, at the three-body level, the Efimov attraction (1/r^2 three-body interaction) can emerge from resonant two-body interactions, leading to the existence of the famous Efimov three-body bound states. In this talk, I will first review the Efimov attraction from its theoretical discovery in 1970 to its most recent experimental confirmations. I will then show how the mediated interaction between two particles immersed in a Bose-Einstein condensate can go from the Yukawa attraction to the Efimov attraction.