• 分類 理論セミナー
  • 開始 2018/03/12(月)13:30
  • 終了 2018/03/12(月)14:30
  • 会場 研究本館1階会議室1
  • 講演タイトル Exploring string axiverse from gravitational wave background
  • 講演者 浦川 優子 教授 (名古屋大学)
  • 言語 英語/English
  • 連絡先
  • ウェブサイト
  • 食堂・売店 利用予定なし/0


I will talk about our recent work with N. Kitajima and J. Soda, where we initiated a study on various cosmological imprints of string axions whose scalar potentials

have plateau regions. In such cases, a delayed onset of oscillation generically leads to a parametric resonance instability. We show that a sustainable resonance can lead to a turbulence phase during which detectable gravitational waves by pulsar timing arrays can be emitted.