Vertex corrections to nonlocal correlation functions vanish at zero wavevector under inversion symmetry and for quadratic dispersions at all wavevectors, with explicit expressions for density, current, and stress responses derived for both Fermi and non-Fermi liquids under local self-energies and En
Khurana, Electrical conductivity in the infinite- dimensional Hubbard model, Phys
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Strong electron correlations in Sr2RuO4 produce unconventional plasmon dispersion, intrinsic width below the electron-hole continuum, and a high-energy peak from incoherent transitions.
Spin-polaron quasiparticles explain the leading optical conductivity peak in iridates, reproduced by DMFT and SCBA calculations that also match ARPES features in both undoped and lightly doped Sr2IrO4.
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.
citing papers explorer
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The flow of local quantum fluids: Conservation laws and vertex corrections from many-body linear-response theory with local self-energy
Vertex corrections to nonlocal correlation functions vanish at zero wavevector under inversion symmetry and for quadratic dispersions at all wavevectors, with explicit expressions for density, current, and stress responses derived for both Fermi and non-Fermi liquids under local self-energies and En
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Unconventional plasmon dynamics due to strong correlations in Sr$_2$RuO$_4$
Strong electron correlations in Sr2RuO4 produce unconventional plasmon dispersion, intrinsic width below the electron-hole continuum, and a high-energy peak from incoherent transitions.
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Spin-polaron fingerprints in the optical conductivity of iridates
Spin-polaron quasiparticles explain the leading optical conductivity peak in iridates, reproduced by DMFT and SCBA calculations that also match ARPES features in both undoped and lightly doped Sr2IrO4.
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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.