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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Numerical evidence shows ω/T scaling in susceptibilities and 1/T cluster conductivity near the pseudogap QCP in the 2D Hubbard model, consistent with marginal-Fermi-liquid self-energy and strange-metal transport.
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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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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Dynamical scaling near the pseudogap quantum critical point of the two-dimensional Hubbard model
Numerical evidence shows ω/T scaling in susceptibilities and 1/T cluster conductivity near the pseudogap QCP in the 2D Hubbard model, consistent with marginal-Fermi-liquid self-energy and strange-metal transport.
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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.