Identities and many-body approaches in Bose-Einstein condensates

研究成果: Article査読

4 被引用数 (Scopus)

抄録

This paper discusses exact relations in the Bose-Einstein condensates, starting from basic properties of an ideal Bose gas. In particular, focused on are the Hugenholtz-Pines relation, Nepomnyashchii-Nepomnyashchii identity, and identities for the density response function. After introducing these exact relations, a few approaches of many-body approximations are discussed, which satisfy the exact relations in the Bose-Einstein condensates. This paper will serve as a bridge between theories on exact relations and those on approximations in the Bose-Einstein condensates.

本文言語English
ページ(範囲)1222-1230
ページ数9
ジャーナルActa Physica Polonica A
135
6
DOI
出版ステータスPublished - 2019
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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