Pairing properties of correlated three-leg ladders with strong interchain couplings near 1/3 filling
Year: 2026
Type: preprint
Abstract: We investigate the ground-state properties of correlated three-leg ladders near 1/3 filling. We apply the density-matrix renormalization group method to the three-leg t-J ladder with strong interchain couplings and evaluate its pairing nature. When holes are doped into the spin-gapped state at 1/3 filling, we find that pair correlations develop with power-law decays while spin correlations decay exponentially. On the other hand, doping of electrons into the 1/3-filled state does not give rise to substantial pair correlations. We also discuss the hole-doped state in the three-leg Hubbard model to compare it with the pairing state in the t-J model. Our numerical demonstrations provide insights into the electronic properties of trilayer nickelate superconductors.
Source: arXiv (Cornell University)
Institution: The University of Osaka
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G3279410850, Real and reciprocal spacetime imaging of many-body excitons and quantum phase control, Correlated electronic states and photoinduced phenomena in bilayer systems, G5624280360, G6814454562, Creation of unconventional high temperature superconductors through manifestation of multilayer Hubbard models
OpenAlex ID: W7155058751