Dynamical density-density correlations in one-dimensional Mott insulators

Abstract

The dynamical density-density correlation function is calculated for the one-dimensional, half-filled Hubbard model extended with nearest neighbor repulsion using the Lanczos algorithm for finite size systems and analytically for large on site repulsion compared to hopping amplitudes. At the zone boundary an excitonic feature exists for any finite nearest neighbor repulsion and exhausts most of the spectral weight, even for parameters where no exciton is visible at zero momentum.

5 pages, REVTeX, epsf, 3 postscript figures

References in corpus (4)

• Momentum-Dependent Charge Transfer Excitations in Sr2CuO2Cl2 - Angle Resolved Electron Energy Loss Spectroscopy
• Spectral function of the 1D Hubbard model in the $U\to +\infty$ limit
• Optical absorption of strongly correlated half-filled Mott-Hubbard chains
• New Types of Off-Diagonal Long Range Order in Spin-Chains

Cited by in corpus (28)

• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Resonant inelastic x-ray scattering study of holon-antiholon continuum in SrCuO2
• Spin and charge dynamics of the one-dimensional extended Hubbard model
• Photoinduced metallic properties of one-dimensional strongly correlated electron systems
• Charge dynamics in half-filled Hubbard chains with finite on-site interaction
• Excitonic effects on high-harmonic generation in Mott insulators
• Dynamical density matrix renormalization group study of photoexcited states in one-dimensional Mott insulators
• Density matrix renormalization group study of optical conductivity in the one-dimensional Mott insulator Sr_2CuO_3
• Optical response in one dimensional Mott Insulators
• A Hubbard exciton fluid in a photo-doped antiferromagnetic Mott insulator
• Dynamics of photoexcited states in one-dimensional dimerized Mott insulators
• Biexciton in one-dimensional Mott insulators
• Charge dynamics of correlated electrons: Variational description with inclusion of composite fermions
• Density-matrix renormalization group study of optical conductivity of the Mott insulator for two-dimensional clusters
• Enhancement of phonon effects in photoexcited states of one-dimensional Mott insulators
• Excitonic optical spectra and energy structures in a one-dimensional Mott insulator demonstrated by applying a many-body Wannier functions method to a charge model
• A charge model as an effective model of one-dimensional Hubbard and extended Hubbard systems: its application to linear optical spectrum calculations in large systems based upon many-body Wannier functions
• Glassy dynamics of the one-dimensional Mott insulator excited by a strong terahertz pulse
• Wannier-Stark ladders and Stark shifts of excitons in Mott insulators
• Hund bands in spectra of multiorbital systems
• Photoinduced coherent oscillations in the one-dimensional two-orbital Hubbard model
• Theory of RIXS in strongly correlated electron systems: Mott gap excitations in cuprates
• Double-Pulse Deexcitations in a One-Dimensional Strongly Correlated System
• Density-density Correlation Function of Strongly Inhomogeneous Luttinger Liquids
• Spin and charge dynamics of doped one-dimensional Mott insulators
• Dynamical Charge Structure Factor of a One-Dimensional Ionic Hubbard Model in the Low-Energy Region
• Density-density correlation functions of chiral Luttinger liquids with a point-contact impurity
• Photoemission Signatures of Photoinduced Carriers and Excitons in One-Dimensional Mott Insulators