154 citations · 345 across the 11 of their papers we have counts for
6 papers · 1 filter
Entropy and thermopower in the 2D t-J model
W. O. Putikka
The entropy of the two-dimensional - model is investigated using its 12th order high temperature series. A direct Padé extrapolation of the entropy series doesn't converge we…
Broad Peak in the d_{x^2-y^2} Superconducting Correlation Length as a Function of Hole Concentration in the Two-Dimensional t-J Model
W. O. Putikka, M. U. Luchini
We have calculated high temperature series to 12th order in inverse temperature for singlet superconducting correlation functions of the 2D t-J model with s-, d_{x^2-y^2}- and d_xy…
Limits on Phase Separation for Two-Dimensional Strongly Correlated Electrons
W. O. Putikka, M. U. Luchini
From calculations of the high temperature series for the free energy of the two-dimensional t-J model we construct series for ratios of the free energy per hole. The ratios can be…
Spin and Charge Excitations in the Two-Dimensional t-J Model: Comparison with Fermi and Bose Systems
W. O. Putikka, M. U. Luchini, R. R. P. Singh
Using high temperature series we calculate temperature derivatives of the spin-spin and density-density correlation functions to investigate the low energy spin and charge excitati…
Does the Two-Dimensional t-J Model have Hole Pockets?
W. O. Putikka, M. U. Luchini, R. R. P. Singh
We have calculated the high temperature series for the momentum distribution function n_k of the 2D t-J model to 12th order in inverse temperature. By extrapolating the series to T…
Violation of Luttinger's Theorem in the Two-Dimensional t-J Model
W. O. Putikka, M. U. Luchini, R. R. P. Singh
We have calculated the high temperature series for the momentum distribution function n_k of the 2D t-J model to 12th order in inverse temperature. By extrapolating the series to T…