fTDHF extends time-dependent Hartree-Fock to fermionized spin-1/2 Hamiltonians, remaining exact for free fermions while handling non-local strings via non-orthogonal Slater determinant transitions and reproducing qualitative dynamics in three benchmark models.
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Entangling power in Heisenberg spin chains shows a monotonic decrease with growing symmetry in small models, sharp dips at SU(2) and free-fermion points in finite chains, and vanishes at SU(2) points but maximizes at the free-fermion point in the thermodynamic limit for the S-matrix.
A digital quantum processor simulates the 1D Fermi-Hubbard model on up to 120 qubits, observing spin-charge separation and achieving quantitative agreement with TDVP while running up to 3000 times faster in wall-clock time for long evolutions.
Sublattice bias in the checkerboard Bose-Hubbard model makes the commensurate superfluid phase experimentally accessible via transmon arrays and supplies new probes for superfluid and insulating phases.
citing papers explorer
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Fermionic mean-field dynamics for spin systems beyond free fermions
fTDHF extends time-dependent Hartree-Fock to fermionized spin-1/2 Hamiltonians, remaining exact for free fermions while handling non-local strings via non-orthogonal Slater determinant transitions and reproducing qualitative dynamics in three benchmark models.
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Entangling Power: A Probe of Symmetry and Integrability in Quantum Many-Body Systems
Entangling power in Heisenberg spin chains shows a monotonic decrease with growing symmetry in small models, sharp dips at SU(2) and free-fermion points in finite chains, and vanishes at SU(2) points but maximizes at the free-fermion point in the thermodynamic limit for the S-matrix.
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Fast, accurate, high-resolution simulation of large-scale Fermi-Hubbard models on a digital quantum processor
A digital quantum processor simulates the 1D Fermi-Hubbard model on up to 120 qubits, observing spin-charge separation and achieving quantitative agreement with TDVP while running up to 3000 times faster in wall-clock time for long evolutions.
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Checkerboard Bose Hubbard Ladders using Transmon Arrays
Sublattice bias in the checkerboard Bose-Hubbard model makes the commensurate superfluid phase experimentally accessible via transmon arrays and supplies new probes for superfluid and insulating phases.