Spectral Properties of the One-Dimensional Hubbard Model

R. Preuss, A. Muramatsu, W. von der Linden, P. Dieterich, F. F. Assaad, W. Hanke

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The spectral properties of the 1D Hubbard model are obtained from quantum Monte Carlo simulations on large systems (N=84) using the maximum entropy method. It is shown for the first time that the one-particle excitations are characterized by dispersive cosinelike bands, in extremely good agreement with slave-boson mean-field ones. Velocities for spin and charge excitations are obtained that lead to a conformal charge c=0.98±0.05. An exact sum rule for spin and charge excitations is fulfilled accurately with deviations of at most 10% only around 2kF.
Original languageEnglish
Pages (from-to)732
Number of pages1
JournalPhysical Review Letters
Volume73
Issue number5
DOIs
Publication statusPublished - 1994

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excitation
maximum entropy method
sum rules
bosons
deviation
simulation

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Spectral Properties of the One-Dimensional Hubbard Model. / Preuss, R.; Muramatsu, A.; von der Linden, W.; Dieterich, P.; Assaad, F. F.; Hanke, W.

In: Physical Review Letters, Vol. 73, No. 5, 1994, p. 732.

Research output: Contribution to journalArticleResearchpeer-review

Preuss, R, Muramatsu, A, von der Linden, W, Dieterich, P, Assaad, FF & Hanke, W 1994, 'Spectral Properties of the One-Dimensional Hubbard Model' Physical Review Letters, vol. 73, no. 5, pp. 732. https://doi.org/10.1103/PhysRevLett.73.732
Preuss, R. ; Muramatsu, A. ; von der Linden, W. ; Dieterich, P. ; Assaad, F. F. ; Hanke, W. / Spectral Properties of the One-Dimensional Hubbard Model. In: Physical Review Letters. 1994 ; Vol. 73, No. 5. pp. 732.
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