Spectral Properties of the One-Dimensional Hubbard Model

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

doi:10.1103/PhysRevLett.73.732

Spectral Properties of the One-Dimensional Hubbard Model

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

Institut für Theoretische Physik - Computational Physics (5150)

Publikation: Beitrag in einer Fachzeitschrift › Artikel › Begutachtung

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.

Originalsprache	englisch
Seiten (von - bis)	732
Seitenumfang	1
Fachzeitschrift	Physical Review Letters
Jahrgang	73
Ausgabenummer	5
DOIs	https://doi.org/10.1103/PhysRevLett.73.732
Publikationsstatus	Veröffentlicht - 1994

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10.1103/PhysRevLett.73.732

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title = "Spectral Properties of the One-Dimensional Hubbard Model",

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.",

author = "R. Preuss and A. Muramatsu and {von der Linden}, W. and P. Dieterich and Assaad, {F. F.} and W. Hanke",

year = "1994",

doi = "10.1103/PhysRevLett.73.732",

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AU - Preuss, R.

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AU - von der Linden, W.

AU - Dieterich, P.

AU - Assaad, F. F.

AU - Hanke, W.

PY - 1994

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AB - 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.

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DO - 10.1103/PhysRevLett.73.732

M3 - Article

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Spectral Properties of the One-Dimensional Hubbard Model

Abstract

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