Does the Two-Dimensional t-J Model have Hole Pockets?
W. O. Putikka, M. U. Luchini, R. R. P. Singh
Abstract
We have calculated the high temperature series for the momentum distribution function nk of the 2D t-J model to 12th order in inverse temperature. By extrapolating the series to T=0.2J we investigate the possibility of hole pockets in the t-J model. We find no indication of hole pockets at an electron density of n=0.9 with J/t=0.5 or J/t=1.0.
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