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Dispersion of a single hole in the t-J model

T. K. Lee·C. T. Shih
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Abstract

The dispersion of a single hole in the t-J model obtained by the exact result of 32 sites and the results obtained by self-consistent Born approximation and the Green function Monte Carlo method can be simply derived by a mean-field theory with d-RVB and antiferromagnetic order parameters. In addition, it offers a simple explanation for the difference observed between those results. The presence of the extended van Hove region at (pi,0) is a consequence of the d-RVB pairing independenct of the antiferromagnetic order. Results including t' and t" are also presented and explained consistently in a similar way.

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T. K. Lee, C. T. Shih. 1996-10-09. Dispersion of a single hole in the t-J model. https://doi.org/10.1103/physrevb.55.5983

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