ムカイダ ヒサミツ   MUKAIDA Hisamitsu
  向田 寿光
   所属   埼玉医科大学  医学部 教養教育
   職種   教授
論文種別 学術雑誌(原著)
言語種別 英語
査読の有無 査読なし
表題 Convex effective potential of O(N)-symmetric φ4 theory for large N
掲載誌名 正式名:Nuclear Physics B
巻・号・頁 479(3),663-682頁
著者・共著者 <U>◎Hisamitsu Mukaida</U>, Yujiro Shimada
発行年月 1996/02
概要 We obtain an effective potential of the O(N)-symmetric φ4 theory for large N starting with a finite lattice system and taking the thermodynamic limit with great care. In the thermodynamic limit, it is globally real-valued and convex in both the symmetric and the broken phases. In particular, it has a flat bottom in the broken phase.