18 citations · 22 across the 2 of their papers we have counts for
3 papers
Interaction and thermodynamics of spinons in the XX chain
Michael Karbach, Gerhard Muller, Klaus Wiele
The mapping between the fermion and spinon compositions of eigenstates in the one-dimensional spin-1/2 XX model on a lattice with N sites is used to describe the spinon interaction…
Spinon excitations in the XX chain: spectra, transition rates, observability
Mitsuhiro Arikawa, Michael Karbach, Gerhard Muller +1
The exact one-to-one mapping between (spinless) Jordan-Wigner lattice fermions and (spin-1/2) spinons is established for all eigenstates of the one-dimensional s = 1=2 XX model on…
Spectrum and transition rates of the XX chain analyzed via Bethe ansatz
Daniel Biegel, Michael Karbach, Gerhard Muller +1
As part of a study that investigates the dynamics of the s=1/2 XXZ model in the planar regime |Delta|<1, we discuss the singular nature of the Bethe ansatz equations for the case D…