Finite-energy spectral-weight distributions of a 1D correlated metal
2005 (English)In: Nuclear Physics B, ISSN 0550-3213, E-ISSN 1873-1562, Vol. 725, no 3, p. 421-466
Article in journal (Refereed) Published
Abstract [en]
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 onsite 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. (c) 2005 Elsevier B.V. All rights reserved.
Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2005. Vol. 725, no 3, p. 421-466
Keywords [en]
DIMENSIONAL HUBBARD-MODEL, INSULATORS, CHARGE, CHAIN
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:hb:diva-27680DOI: 10.1016/j.nuclphysb.2005.07.002OAI: oai:DiVA.org:hb-27680DiVA, id: diva2:1646427
Note
Correction to article was published 13 March 2006: https://doi.org/10.1016/j.nuclphysb.2006.01.001
2022-03-222022-03-222022-03-23Bibliographically approved