Particle doping of the triangular Hubbard model yields a Nagaoka supermetal whose anomalous transport and thermodynamic properties arise from a power-law divergent density of states at a higher-order Van Hove singularity.
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Numerical simulation of the 2D Hubbard model at U=7t, t'=-0.3t finds a critical doping p* where Fermi-liquid scales collapse continuously, marking a quantum phase transition to a pseudogap metal with Fermi arcs.
Two-orbital models with interorbital t-J or t-V interactions exhibit incommensurate d_xy pair density wave superconductivity driven by interband pairing, confirmed by RPA and strong-coupling hard-core pair calculations showing period-2 PDW over wide fillings.
Entanglement structure provides a natural distributed representation for quantum wavefunctions that reduces Hamiltonian applications to local contractions and enables near-linear scaling in simulations.
citing papers explorer
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Nagaoka supermetal in the particle-doped triangular Hubbard model
Particle doping of the triangular Hubbard model yields a Nagaoka supermetal whose anomalous transport and thermodynamic properties arise from a power-law divergent density of states at a higher-order Van Hove singularity.
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Quantum criticality in the two-dimensional Hubbard model
Numerical simulation of the 2D Hubbard model at U=7t, t'=-0.3t finds a critical doping p* where Fermi-liquid scales collapse continuously, marking a quantum phase transition to a pseudogap metal with Fermi arcs.
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d-Wave pair density wave superconductivity in a two-orbital model
Two-orbital models with interorbital t-J or t-V interactions exhibit incommensurate d_xy pair density wave superconductivity driven by interband pairing, confirmed by RPA and strong-coupling hard-core pair calculations showing period-2 PDW over wide fillings.
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Entanglement-informed distributed wavefunction approach to scalable quantum many-body systems
Entanglement structure provides a natural distributed representation for quantum wavefunctions that reduces Hamiltonian applications to local contractions and enables near-linear scaling in simulations.