Non-Fermi-Liquid-Like Behavior in The Two-Dimensional t-J Model

Details Non-Fermi-Liquid-Like Behavior in The Two-Dimensional t-J Model Non-Fermi-Liquid-Like Behavior in The Two-Dimensional t-J Model

1994-01-19

arxiv.org/abs/cond-mat/9401039v1

Physics

Condensed Matter

10 pages, tex, 3 figures upon request

Scientific paper

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.

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