SKQD with ZZ deformation Δ=2, bitstring compression, and multiple Krylov subspaces yields relative ground-state energy errors below 0.01% on 12-site Kagome and sub-percent up to 24 sites across three geometries, extending to 72 sites with 19-36% errors.
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Ground-state estimation of the Heisenberg model on frustrated lattices with Sample-based Krylov Quantum Diagonalization
SKQD with ZZ deformation Δ=2, bitstring compression, and multiple Krylov subspaces yields relative ground-state energy errors below 0.01% on 12-site Kagome and sub-percent up to 24 sites across three geometries, extending to 72 sites with 19-36% errors.