84 citations · 622 across the 37 of their papers we have counts for
37 papers
quantum chains with quantum group invariant boundaries
Holger Frahm, Márcio J. martins
Based on the finite-size analysis of the spectrum of the quantum group invariant deformation of the superspin chain we identify the operator content of the conformal fie…
The spectrum properties of an integrable invariant vertex model
M. J. Martins
This paper is concerned with the study of properties of the exact solution of the fundamental integrable vertex model. The model -matrix and respective spin chain are pres…
quantum chains with free boundaries
Holger Frahm, Márcio J. Martins
In this paper we investigate the spectrum of quantum spin chains with free boundary conditions. We compute the surface free energy of these models which, similar to oth…
Integrability of the spin-1/2 fermions with charge pairing and Hubbard interaction
M. J. Martins
In this paper we study the exact solution of a one-dimensional model of spin- electrons composed by a nearest-neighbor triplet pairing term and the on-site Hubbard int…
On the critical behaviour of the integrable -deformed superspin chain
Holger Frahm, Konstantin Hobuß, Márcio J. Martins
This paper is concerned with the investigation of the massless regime of an integrable spin chain based on the quantum group deformation of the superalgebra. The finite-…
The fine structure of the finite-size effects for the spectrum of the spin chain
Holger Frahm, Márcio J. Martins
In this paper we investigate the finite-size properties of the spectrum of quantum spin chains with local spins taken to be the fundamental vector representation of the …