Non-Fermi-Liquid-Like Behavior in The Two-Dimensional t-J Model
Abstract
Description
The spin, charge and pairing correlation functions for the ground state of two-dimensional $t-J$ model are calculated by using the power method which projects out the ground state from a variational wave function. ``Exact'' results are obtained for $10\times10$ and $8\times8$ lattices with low particle densities.
The results are surprisingly similar to that of one-dimensional $t-J$ model. The phenomenology is almost perfectly correlated with the concept of Tomonaga-Luttinger liquid and it is incompatible with traditional Fermi liquid theory.
10 pages, tex, 3 figures upon request
10 pages, tex, 3 figures upon request