Finite-energy spectral-weight distributions of a 1D correlated metal

J. M.P. Carmelo, K. Penc, D. Bozi

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We derive general closed-form analytical expressions for the finite-energy one- and two-electron spectral-weight distributions of an one-dimensional correlated metal with on-site electronic repulsion. Our results also provide general expressions for the one- and two-atom spectral functions of a correlated quantum system of cold fermionic atoms in a one-dimensional optical lattice with on-site atomic repulsion. In the limit of zero spin density our spectral-function expressions provide the correct zero-spin density results. Our results reveal the dominant non-perturbative microscopic many-particle mechanisms behind the exotic spectral properties observed in quasi-one-dimensional metals and correlated systems of cold fermionic atoms in one-dimensional optical lattices.

Original languageEnglish
Pages (from-to)421-466
Number of pages46
JournalNuclear Physics B
Volume725
Issue number3
DOIs
Publication statusPublished - Oct 10 2005

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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