Isosbestic points in the spectral function of correlated electrons

Simple item page
dc.creatorEckstein, M.
dc.creatorKollar, M.
dc.creatorVollhardt, D.
dc.date2006-09-19
dc.date.accessioned2026-07-07T08:05:36Z
dc.date.available2026-07-07T08:05:36Z
dc.descriptionWe investigate the properties of the spectral function A(omega,U) of correlated electrons within the Hubbard model and dynamical mean-field theory. Curves of A(omega,U) vs. omega for different values of the interaction U are found to intersect near the band-edges of the non-interacting system. For a wide range of U the crossing points are located within a sharply confined region. The precise location of these 'isosbestic points' depends on details of the non-interacting band structure. Isosbestic points of dynamic quantities therefore provide valuable insights into microscopic energy scales of correlated systems.
dc.description16 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0609464
dc.identifierhttp://arxiv.org/abs/cond-mat/0609464
dc.identifierJ. Low Temp. Phys. 147, 279 (2007)
dc.identifierdoi:10.1007/s10909-007-9311-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/130328
dc.subjectStrongly Correlated Electrons
dc.titleIsosbestic points in the spectral function of correlated electrons
dc.typetext

Files

Collections

arXiv