In the Emery model, the maximum superconducting critical temperature increases with copper-oxygen energy distance at fixed charge gap, correlating with increased oxygen hole content and deeper charge-transfer character.
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Neural networks trained with 10-100x fewer examples than prior work approximate CT-QMC impurity solvers in DMFT, delivering comparable accuracy on interpolation and accelerating simulations up to 5x when used as initial guesses for lower temperatures.
In the 2D Hubbard model, d-wave pairing is confined to superexchange frequencies with pair-forming processes at low frequencies and pair-breaking at higher ones, independent of the Hubbard U scale.
DFT+DMFT calculations find orbital-dependent mass renormalizations, a doping-driven Lifshitz transition with self-doping, and enhanced spin fluctuations suggesting stripe order in La3Ni2O7.
DFT+DMFT with a multi-orbital iterative perturbation theory solver shows that low-energy spectra and transport of SrVO3 are governed by a single quasiparticle weight Z, yielding reasonable experimental agreement insensitive to specific (U,J) parameters.
DFT+DMFT shows orbital-selective Mott insulation in single-layer Ni eg states and strongly renormalized quasiparticles (m*/m ~3.5-4.2) in bilayer Ni of La5Ni3O11, plus competing spin-charge density wave stripes at Q=(1/3,1/3) and (1/4,1/4).
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Correlation of maximum superconducting critical temperature with copper-oxygen energy distance and oxygen hole content in the Emery model
In the Emery model, the maximum superconducting critical temperature increases with copper-oxygen energy distance at fixed charge gap, correlating with increased oxygen hole content and deeper charge-transfer character.
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Neural networks as low-cost surrogates for impurity solvers in quantum embedding methods
Neural networks trained with 10-100x fewer examples than prior work approximate CT-QMC impurity solvers in DMFT, delivering comparable accuracy on interpolation and accelerating simulations up to 5x when used as initial guesses for lower temperatures.
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Dynamics of superconducting pairs in the two-dimensional Hubbard model
In the 2D Hubbard model, d-wave pairing is confined to superexchange frequencies with pair-forming processes at low frequencies and pair-breaking at higher ones, independent of the Hubbard U scale.
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Effect of doping on the electronic structure, orbital-dependent renormalizations, and magnetic correlations in bilayer La$_3$Ni$_2$O$_7$
DFT+DMFT calculations find orbital-dependent mass renormalizations, a doping-driven Lifshitz transition with self-doping, and enhanced spin fluctuations suggesting stripe order in La3Ni2O7.
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Quantitative DFT+DMFT description of spectra and transport in the moderately correlated metal SrVO$_3$
DFT+DMFT with a multi-orbital iterative perturbation theory solver shows that low-energy spectra and transport of SrVO3 are governed by a single quasiparticle weight Z, yielding reasonable experimental agreement insensitive to specific (U,J) parameters.
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Electronic structure, quasiparticle renormalizations, and magnetic correlations in the alternating single-layer bilayer nickelate La$_5$Ni$_3$O$_{11}$
DFT+DMFT shows orbital-selective Mott insulation in single-layer Ni eg states and strongly renormalized quasiparticles (m*/m ~3.5-4.2) in bilayer Ni of La5Ni3O11, plus competing spin-charge density wave stripes at Q=(1/3,1/3) and (1/4,1/4).