Spectral Weights, d-wave Pairing Amplitudes, and Particle-hole Tunneling Asymmetry of a Strongly Correlated Superconductor

Abstract

The spectral weights (SW's) for adding and removing an electron of the Gutzwiller projected d-wave superconducting (SC) state of the t-J-type models are studied numerically on finite lattices. Restrict to the uniform system but treat exactly the strong correlation between electrons, we show that the product of weights is equal to the pairing amplitude squared, same as in the weakly coupled case. In addition, we derive a rigorous relation of SW with doping in the electron doped system and obtain particle-hole asymmetry of the conductance-proportional quantity within the SC gap energy and, also, the anti-correlation between gap sizes and peak heights observed in tunneling spectroscopy on high Tc cuprates.

4 Revtex pages and 4 .eps figures. Published version

References in corpus (3)

• A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
• Inhomogeneity Induces Resonance Coherence Peaks in Superconducting BSCCO
• Local Density of States and Angle-Resolved Photoemission Spectral Function of an Inhomogeneous D-wave Superconductor

Cited by in corpus (6)

• Self-consistent slave rotor mean field theory for strongly correlated systems
• Spontaneous breaking of the Fermi surface symmetry in the t-J model: a numerical study
• Grand canonical Gutzwiller approximation for magnetic inhomogeneous systems
• Two-mode variational Monte Carlo study of Quasiparticle excitations in cuprates
• Quasiparticle spectral weights of Gutzwiller-projected high T_c superconductors
• SU(2) approach to the pseudogap phase of high-temperature superconductors: electronic spectral functions