Spin-Charge Separation at Finite Temperature in the Supersymmetric<i>t</i>-<i>J</i>Model with Long-Range Interactions
Spin-Charge Separation at Finite Temperature in the Supersymmetric<i>t</i>-<i>J</i>Model with Long-Range Interactions
Thermodynamics is derived rigorously for the 1D supersymmetric {\it t-J} model and its SU($K,1$) generalization with inverse-square exchange. The system at low temperature is described in terms of spinons, antispinons, holons and antiholons obeying fractional statistics. They are all free and make the spin susceptibility independent of electron density, and …