Auflistung nach Schlagwort "continuum-limit"

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  • Finite-size effects in the spectrum of the OSp(3|2) superspin chain 
    Frahm, Holger; Martins, Márcio J. (Amsterdam : Elsevier Science BV, 2015)
    The low energy spectrum of a spin chain with OSp(3|2)supergroup symmetry is studied based on the Bethe ansatz solution of the related vertex model. This model is a lattice realization of intersecting loops in two dimensions ...
  • OSp(n|2m) quantum chains with free boundaries 
    Frahm, Holger; Martins, Márcio J. (Amsterdam : North-Holland Publ. Co., 2022)
    In this paper we investigate the spectrum of OSp(n|2m) quantum spin chains with free boundary conditions. We compute the surface free energy of these models which, similar to other properties in the thermodynamic limit ...
  • The staggered six-vertex model: Conformal invariance and corrections to scaling 
    Frahm, Holger; Seel, Alexander (Amsterdam : Elsevier Science BV, 2014)
    We study the emergence of non-compact degrees of freedom in the low energy effective theory for a class of Z2Z2-staggered six-vertex models. In the finite size spectrum of the vertex model this shows up through the appearance ...