A dynamical mean-field theory study of stripe order and d-wave superconductivity in the two-dimensional Hubbard model

Abstract

We use cellular dynamical mean-field theory with extended unit cells to study the ground state of the two-dimensional repulsive Hubbard model at finite doping. We calculate the energy of states with d-wave superconductivity coexisting with spatially uniform magnetic order and find that they are energetically favoured in a large doping region as compared to the uniform solution. We study the spatial form of the superconducting and magnetic order parameters at different doping values.

arXiv comment11 pages, 6 figures

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• Plaquette versus ordinary $d$-wave pairing in the $t^{\prime }$-Hubbard model on a width 4 cylinder
• Period 4 stripe in the extended two-dimensional Hubbard model
• Stripe and superconducting order competing in the Hubbard model on a square lattice studied by a combined variational Monte Carlo and tensor network method
• Intertwined spin, charge and pair correlations in the two-dimensional Hubbard model in the thermodynamic limit
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• Temperature Dependence of Spin and Charge Orders in the Doped Two-Dimensional Hubbard Model
• Energy-weighted density matrix embedding of open correlated chemical fragments
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• Metallic and insulating stripes and their relation with superconductivity in the doped Hubbard model
• Dynamical Charge Susceptibility in the Hubbard Model
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• Spin-Imbalanced Pairing and Fermi Surface Deformation in Flat Bands
• Magnetization, d-wave superconductivity and non-Fermi liquid behavior in a crossover from dispersive to flat bands
• Stripes in the extended $t-t^{\prime }$ Hubbard model: A Variational Monte Carlo analysis
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