RFOX maintains a flat spectral gap via non-stoquastic XX catalyst plus analytic counter-diabatic ZX driving, yielding near-optimal solutions on random-field Ising models with up to 10x fewer Trotter steps.
Nonstoquastic hamiltonians and quantum annealing of an ising spin glass
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Hybrid sector and path-window drivers achieve approximately 0.98 fidelity in centered barrier instances on hypercubes, outperforming standard transverse-field annealing for specific target Hamiltonians.
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RFOX (Rotated-Field Oscillatory eXchange) quantum algorithm: Towards Parameter-Free Quantum Optimizers
RFOX maintains a flat spectral gap via non-stoquastic XX catalyst plus analytic counter-diabatic ZX driving, yielding near-optimal solutions on random-field Ising models with up to 10x fewer Trotter steps.
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Sector-dominant graph-local drivers for path-window barrier Hamiltonians on the Boolean hypercube
Hybrid sector and path-window drivers achieve approximately 0.98 fidelity in centered barrier instances on hypercubes, outperforming standard transverse-field annealing for specific target Hamiltonians.