General spectral function expressions of a 1D correlated model

J. M P Carmelo, K. Penc

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We introduce a method that allows the evaluation of general expressions for the spectral functions of the one-dimensional Hubbard model for all values of the on-site electronic repulsion U. The spectral weights are expressed in terms of pseudofermion operators such that the spectral functions can be written as a convolution of pseudofermion dynamical correlation functions. Our results are valid for all finite energy and momentum values and are used elsewhere in the study of the unusual finite-energy properties of quasi-one-dimensional compounds and the new quantum systems of ultra-cold fermionic atoms on an optical lattice.

Original languageEnglish
Pages (from-to)477-499
Number of pages23
JournalEuropean Physical Journal B
Volume51
Issue number4
DOIs
Publication statusPublished - Jun 2006

Fingerprint

convolution integrals
Optical lattices
Hubbard model
momentum
Convolution
operators
energy
Mathematical operators
evaluation
Momentum
electronics
atoms
Atoms

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

General spectral function expressions of a 1D correlated model. / Carmelo, J. M P; Penc, K.

In: European Physical Journal B, Vol. 51, No. 4, 06.2006, p. 477-499.

Research output: Contribution to journalArticle

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