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arXiv · 1805.11163

Superconductivity in the doped $t$-$J$ model: results for four-leg cylinders

Hong-Chen Jiang·Zheng-Yu Weng·Steven A. Kivelson
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Abstract

We report a density-matrix renormalization group study of the lightly doped $t$-$J$ model on a 4-leg cylinder with doped hole concentrations per site $δ=5\%\sim 12.5\%$. By keeping an unusually large number of states and long system sizes, we are able to accurately document the interplay between d-wave superconductivity (SC) and spin and charge-density-wave (CDW) orders. The long-distance behavior is consistent with that of a Luther-Emery liquid with a spin-gap, power-law CDW correlations with wave-length $λ=1/2δ$, and power-law SC correlations. This is the widest (most nearly 2D) such system for which power law SC correlations have been established.

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Hong-Chen Jiang, Zheng-Yu Weng, Steven A. Kivelson. 2018-05-28. Superconductivity in the doped $t$-$J$ model: results for four-leg cylinders. https://doi.org/10.1103/physrevb.98.140505

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