Spin-charge separation in two dimensions: A numerical study
Mihir Arjunwadkar, Padmakar V. Panat, D. G. Kanhere
The question of spin-charge separation in two-dimensional lattices has been addressed by numerical simulations of the motion of one hole in a half-filled band. The calculations have been performed on finite clusters with Hubbard and t-J models. By comparing the time evolution of spin and charge polarization currents in one and two dimensions, evidence in favor of spin-charge separation in two dimensions is presented. In contrast with this, spin-charge separation is absent in a highly doped, metallic, system.
arXiv:cond-mat/9304007•Physical review. B, Condensed matter•Oct 1, 1993•1 citation