Spectral properties of the one-dimensional Hubbard model

Preprint

13 December 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9312049

Abstract

The spectral properties of the 1-D Hubbard model are obtained from quantum Monte Carlo simulations using the maximum entropy method. The one-particle excitations are characterized by dispersive cosine-like bands. Velocities for spin- and charge excitations are obtained that lead to a conformal charge c=0.98 +/- 0.05 for the largest system simulated (N=84). An exact sum-rule for the spin-excitations is fulfilled accurately with deviations of at most 10% only around 2 kF.

Keywords

MONTE CARLO SIMULATIONS
DIMENSIONAL HUBBARD
SPECTRAL PROPERTIES
SYSTEM SIMULATED
HUBBARD MODEL
CHARGE
MODEL

All Related Versions

Version 1, 1993-12-13, ArXiv
Published version: Physical Review Letters, 73 (5), 732.

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