Auflistung nach Schlagwort "Bethe-Ansatz"

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  • Correlation functions of the one-dimensional Hubbard model in a magnetic field 
    Frahm, Holger; Korepin, V.E. (College Park (Maryland) : American Physical Society, 1991)
    We present a general method for the calculation of correlation functions in the repulsive one-dimensional Hubbard model at less than half-filling in a magnetic field h. We describe the dependence of the critical exponents ...
  • Critical exponents for the one-dimensional Hubbard model 
    Frahm, Holger; Korepin, V.E. (College Park (Maryland) : American Physical Society, 1990)
    Using results on the scaling of energies with the size of the system and the principles of conformal quantum field theory, we calculate the asymptotics of correlation functions for the one-dimensional Hubbard model in the ...
  • Non-Abelian quasi-particles in electronic systems 
    Borcherding, Daniel (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2018)
    Ever since the proposal of Kitaev for decoherence-free quantum computing based on non-Abelian anyons physical realizations of these exotic particles have been investigated extensively. Starting from one-dimensional models ...
  • Spin chains and vertex models based on superalgebras 
    Hobuß, Konstantin (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    The thermodynamic limit of superspin chains can show several intriguing properties, including the emergence of continua of scaling dimensions and the appearance of discrete states when imposing toroidal boundary conditions. ...