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Characteristics of the Charged Hole in the One-Dimensional Mott Insulator

  • N. Kawakami
  • A. Okiji
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 89)

Abstract

Charge excitations in the one-dimensional Hubbard model are investigated, with the use of the Bethe-Ansatz method, by inserting the charged hole into the Mott insulator. The density of states and the momentum-dependent susceptibility for the charged hole are shown to have a large enhancement due to the formation of the Hubbard gap. The logarithmic anomaly near 4k F for the latter quantity is investigated in the vicinity of the Mott insulator. The compressibility and the specific heat calculated in the whole temperature region are discussed in connection with the characteristics of the charged holes.

Keywords

Mott Insulator Lower Energy Region Charged Hole Divergent Behaviour Spinless Fermion 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • N. Kawakami
    • 1
  • A. Okiji
    • 2
  1. 1.Research Institute for Fundamental PhysicsKyoto UniversityKyoto 606Japan
  2. 2.Department of Applied PhysicsOsaka UniversitySuita, Osaka 565Japan

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