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Ground State Phases of the Doped 4-Leg t-J Ladder

Steven R. White·D. J. Scalapino
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Abstract

Using density matrix renormalization group techniques, we have studied the ground state of the 4-leg t-J ladder doped near half-filling. Depending upon J/t and the hole doping x, three types of ground state phases are found: (1) a phase containing d_{x^2-y^2} pairs; (2) a striped CDW domain-wall phase, and (3) a phase separated regime. A CDW domain-wall consists of fluctuating hole pairs and this phase has significant d_{x^2-y^2} pair field correlations.

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Steven R. White, D. J. Scalapino. 1996-08-28. Ground State Phases of the Doped 4-Leg t-J Ladder. https://doi.org/10.1103/physrevb.55.r14701

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