<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">d</mi></math></span>-Wave Pairing Correlation in the Two-Dimensional <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi mathvariant="italic">t</mi><mi>−</mi><mi mathvariant="italic">J</mi></math></span> Model

C. T. Shih; Y. C. Chen; H. Q. Lin; T. K. Lee

doi:10.1103/PhysRevLett.81.1294

$d$ -Wave Pairing Correlation in the Two-Dimensional $t - J$ Model

C. T. Shih, Y. C. Chen, H. Q. Lin, and T. K. Lee

Phys. Rev. Lett. 81, 1294 – Published 10 August 1998

Abstract

The pair-pair correlation function of the two-dimensional $t - J$ model is studied by using the power-Lanczos method under the assumption of monotonic behavior. In comparison with the results of the ideal Fermi gas, we conclude that the 2D $t - J$ model does not have long-range $d$ -wave superconducting correlation in the interesting parameter range of $J / t \leq 0.5$ . Implications of this result are also discussed.