Determination of Tomonaga-Luttinger parameters for a two-component liquid
Determination of Tomonaga-Luttinger parameters for a two-component liquid
We provide evidence for the mapping of critical spin-1 chains, in particular the SU(3) symmetric bilinear-biquadratic model with additional interactions, to free boson theories using exact diagonalization and the density matrix renormalization group algorithm. Using the correspondence with a conformal field theory with central charge c=2, we determine the analytic …