Measuring a quantum state's Fourier coefficients, rather than its grid-point amplitudes, recovers smooth amplitude-encoded functions with shot count independent of grid size, preserving quantum speedups for CAE readout.
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Fourier space readout method for efficiently recovering functions encoded in quantum states
Measuring a quantum state's Fourier coefficients, rather than its grid-point amplitudes, recovers smooth amplitude-encoded functions with shot count independent of grid size, preserving quantum speedups for CAE readout.