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- W83797367 abstract "We discuss some recent results for one-and two-hole states in the t-J model at small t/J. These include numerical results (bandwidth determinations and accurate t/J values for 4 x 4 lattice one-hole ground-state level crossings), hopping-parameter perturbation theory (which gives the small-t/J one-hole bandwidth in terms of the static-vacancy ground state), and results at the supersymmetric point t/J = 1/2 (exact results for energies and bandwidths). The perturbative results lead us to a new conjecture regarding the staggered magnetization of higher-spin states in the two-dimensional Heisenberg model. We also discuss extrapolation of small-t/J results to high-Tc parameter values; in the two-hole ground states we find (t/J)λ behavior in the rms hole-hole separation, and an extrapolation to t/J = 3 gives a bulk-limit rms hole-hole separation of ≈ 7A" @default.
- W83797367 created "2016-06-24" @default.
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- W83797367 date "1991-01-01" @default.
- W83797367 modified "2023-09-23" @default.
- W83797367 title "The t-J Model at Small t/J: Numerical, Perturbative and Supersymmetric Results" @default.
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- W83797367 doi "https://doi.org/10.1007/978-1-4615-3338-2_53" @default.
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