An X-operator FRG calculation for the infinite-U square-lattice Hubbard model gives a phase diagram with Fermi liquid, stripe antiferromagnet, two ferromagnetic regimes, and a bad-metal spectrum with polaronic tails.
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DMFT long-range order in chargons plus spinon fluctuations creates asymmetric damping that turns low-doping hole pockets into Fermi arcs, while chargon pockets remain candidates for quantum oscillations.
Magnetic fluctuations split the electronic spectrum in the paramagnetic phase of itinerant ferromagnets and altermagnets, closely resembling the ordered-phase DFT bands.
citing papers explorer
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Functional renormalization group for extremely correlated electrons
An X-operator FRG calculation for the infinite-U square-lattice Hubbard model gives a phase diagram with Fermi liquid, stripe antiferromagnet, two ferromagnetic regimes, and a bad-metal spectrum with polaronic tails.
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The pseudogap in high-$T_c$ superconductors from SU(2) gauge symmetry and dynamic correlation effects
DMFT long-range order in chargons plus spinon fluctuations creates asymmetric damping that turns low-doping hole pockets into Fermi arcs, while chargon pockets remain candidates for quantum oscillations.
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Splitting of electronic spectrum in paramagnetic phase of itinerant ferromagnets and altermagnets
Magnetic fluctuations split the electronic spectrum in the paramagnetic phase of itinerant ferromagnets and altermagnets, closely resembling the ordered-phase DFT bands.