Ghost-GA provides an efficient way to compute the magnetic phase diagram of the anisotropic triangular Hubbard model, matching DMFT closely and ruling out the 1D AF phase.
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GTEMPO is extended to the Nambu formalism for superconducting baths via Bogoliubov transformation, with benchmarks showing accuracy against exact diagonalization and CTQMC.
A Keldysh-space extension of the Kajueter-Kotliar iterated perturbation theory is introduced and validated against AMEA for biased Anderson impurity transport away from half filling in the regime where AMEA is reliable.
Hubbard and Emery models produce similar physics for cuprates but differ quantitatively in spectra, transport, and doping-dependent features, with good experimental agreement when using stronger coupling in the Hubbard model.
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Magnetic phases of the anisotropic triangular Hubbard model from the ghost-Gutzwiller approximation in the rotating spin-frame
Ghost-GA provides an efficient way to compute the magnetic phase diagram of the anisotropic triangular Hubbard model, matching DMFT closely and ruling out the 1D AF phase.
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Grassmann time-evolving matrix product operators for fermionic impurities coupled to a superconducting bath
GTEMPO is extended to the Nambu formalism for superconducting baths via Bogoliubov transformation, with benchmarks showing accuracy against exact diagonalization and CTQMC.
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Extension of the iterated perturbation theory at arbitrary fillings to nonequilibrium steady states
A Keldysh-space extension of the Kajueter-Kotliar iterated perturbation theory is introduced and validated against AMEA for biased Anderson impurity transport away from half filling in the regime where AMEA is reliable.
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Hubbard vs. Emery model: spectra, transport and relevance for cuprates
Hubbard and Emery models produce similar physics for cuprates but differ quantitatively in spectra, transport, and doping-dependent features, with good experimental agreement when using stronger coupling in the Hubbard model.