Dynamical density correlation function of one-dimensional Mott insulators in a magnetic field

We consider the one-dimensional extended Hubbard model at half filling in the presence of a magnetic field. Using field theory techniques we calculate the dynamical density-density correlation function Xnn(ω,q) in the low-energy limit. When excitons are formed, a singularity appears in Xnn(ω,q) at a...

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Bibliografiske detaljer
Main Authors: Controzzi, D, Essler, F
Format: Journal article
Sprog:English
Udgivet: 2002

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