A statevector-emulated HHL solver applied to Carleman-linearized lattice Boltzmann equations achieves about 10^-3 fidelity on tiny 2D benchmarks, but physical accuracy is dominated by the Carleman truncation error, not the quantum solver.
ApplyRy rotations to the ancilla qubit with the rotation angles θ determined by the closest binary approximation ˜λ of the eigen- valueλ of the matrix A
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Practical Application of the Quantum Carleman Lattice Boltzmann Method in Industrial CFD Simulations
A statevector-emulated HHL solver applied to Carleman-linearized lattice Boltzmann equations achieves about 10^-3 fidelity on tiny 2D benchmarks, but physical accuracy is dominated by the Carleman truncation error, not the quantum solver.