Dispersion of a single hole in the t-J model

Details Dispersion of a single hole in the t-J model Dispersion of a single hole in the t-J model

1996-04-11

arxiv.org/abs/cond-mat/9604061v2

Physics

Condensed Matter

LaTex file, 5 pages with 5 embedded eps figures

Scientific paper

10.1103/PhysRevB.55.5983

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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