Addendum to "Quantum Search with Noisy Oracle"
Abstract
In this note, I generalize the techniques of my recent work (arXiv:2309.14944) and show that, even if just a single known qubit of query registers is affected by the depolarizing noise of rate p, quantum search among n elements cannot be done any faster than in O(np) queries. This holds both when the affected qubit is one of the log(n) index qubits and when it is the target qubit.
- Publication:
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arXiv e-prints
- Pub Date:
- May 2024
- DOI:
- 10.48550/arXiv.2405.11973
- arXiv:
- arXiv:2405.11973
- Bibcode:
- 2024arXiv240511973R
- Keywords:
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- Quantum Physics
- E-Print:
- 4 figures, 29 pages