A hybrid QACG solver uses quantum spectral initialization to split condition-number burden between quantum and classical parts, yielding runtime gains in identified regimes for the 3D Poisson equation.
9, we estimate the expected runtime of HHL for the 3D Poisson equation under different assumptions on the quantum condition numberκ′and the QEC cycle timeτ
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Quantum-accelerated conjugate gradient method via spectral initialization
A hybrid QACG solver uses quantum spectral initialization to split condition-number burden between quantum and classical parts, yielding runtime gains in identified regimes for the 3D Poisson equation.