• Corpus ID: 247939557

Error Resilient Quantum Amplitude Estimation from Parallel Quantum Phase Estimation

@inproceedings{Braun2022ErrorRQ,
  title={Error Resilient Quantum Amplitude Estimation from Parallel Quantum Phase Estimation},
  author={Michael C. Braun and Thomas Decker and Niklas Hegemann and Sven Kerstan},
  year={2022}
}
We show how phase and amplitude estimation algorithms can be parallelized. This can reduce the gate depth of the quantum circuits to that of a single Grover operator with a small overhead. Further, we show that for quantum amplitude estimation, the parallelization can lead to vast improvements in resilience against quantum errors. The resilience is not caused by the lower gate depth, but by the structure of the algorithm. Even in cases with errors that make it impossible to read out the exact… 
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