A new QMC estimator shows diverging superfluid density in the long-range 1d XY model as the interaction exponent alpha approaches zero.
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A technique extracts k-local conserved operators from iPEPS by identifying vanishing fidelity susceptibility in a quantum geometry of parameter-deformed states, yielding improved parent Hamiltonians for RVB and deformed toric code states.
A conserving diagrammatic theory for the doped Hubbard model shows four magnetic polaron hole pockets, doping-softened magnons, and pseudogap-like lattice modulation responses near half filling.
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Superfluidity in the spin-1/2 XY model with power-law interactions
A new QMC estimator shows diverging superfluid density in the long-range 1d XY model as the interaction exponent alpha approaches zero.
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Extracting conserved operators from a projected entangled pair state
A technique extracts k-local conserved operators from iPEPS by identifying vanishing fidelity susceptibility in a quantum geometry of parameter-deformed states, yielding improved parent Hamiltonians for RVB and deformed toric code states.
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Hole and spin dynamics in an anti-ferromagnet close to half filling
A conserving diagrammatic theory for the doped Hubbard model shows four magnetic polaron hole pockets, doping-softened magnons, and pseudogap-like lattice modulation responses near half filling.