New low-bond MPO construction, entanglement-aware MPS optimization, and Gutzwiller parameter tuning enable transcorrelated DMRG on 12x12 lattices, cutting ground-state energy errors by 3x to 17x versus standard DMRG at equal effort.
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AFQMC entropy phase diagrams for the 3D Hubbard model show that interaction-dependent entropy increase and density disorder quantitatively account for the experimental AFM structure factor maximum at U/t ≃ 11.75 rather than the prior theoretical value ≃ 8.
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Scaling up the transcorrelated density matrix renormalization group
New low-bond MPO construction, entanglement-aware MPS optimization, and Gutzwiller parameter tuning enable transcorrelated DMRG on 12x12 lattices, cutting ground-state energy errors by 3x to 17x versus standard DMRG at equal effort.
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Thermal Entropy, Density Disorder and Antiferromagnetism of Repulsive Fermions in 3D Optical Lattice
AFQMC entropy phase diagrams for the 3D Hubbard model show that interaction-dependent entropy increase and density disorder quantitatively account for the experimental AFM structure factor maximum at U/t ≃ 11.75 rather than the prior theoretical value ≃ 8.