Towards the Mott Transition in One Dimension

Michiyasu Mori, Hidetoshi Fukuyama, Masatoshi Imada

研究成果: Article査読

24 被引用数 (Scopus)

抄録

The spectrum of charge excitations, ImN(qt ω) has been evaluated near the Mott transition in the one-dimensional Hubbard model with a particular value of the Coulomb interaction. The present theory based on a continuum limit describes the smooth change between the Tomonaga-Luttinger liquid state with a q-linear mode and the Mott insulator with a charge gap, by considering Umklapp scattering. The charge susceptibility is seen to diverge proportional to the inverse of the doping rate as the Mott insulator state is approached, in agreement with Bethe-ansatz result. It is shown that the q region where the renormalization group theory and conformal field theory are valid becomes vanishingly small as the transition is approached.

本文言語English
ページ(範囲)1639-1642
ページ数4
ジャーナルjournal of the physical society of japan
63
5
DOI
出版ステータスPublished - 1994
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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