IEEE access, 2020, Vol.8, p.228967-228991
2020
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Details
- Autor(en) / Beteiligte
- Titel
- Sampling Overhead Analysis of Quantum Error Mitigation: Uncoded vs. Coded Systems
- Ist Teil von
- IEEE access, 2020, Vol.8, p.228967-228991
- Ort / Verlag
- Piscataway: IEEE
- Erscheinungsjahr
- 2020
- Quelle
- Free E-Journal (出版社公開部分のみ）
- Beschreibungen/Notizen
- Quantum error mitigation (QEM) is a promising technique of protecting hybrid quantum-classical computation from decoherence, but it suffers from sampling overhead which erodes the computational speed. In this treatise, we provide a comprehensive analysis of the sampling overhead imposed by QEM. In particular, we show that Pauli errors incur the lowest sampling overhead among a large class of realistic quantum channels having the same average fidelity. Furthermore, we show that depolarizing errors incur the lowest sampling overhead among all kinds of Pauli errors. Additionally, we conceive a scheme amalgamating QEM with quantum channel coding, and analyse its sampling overhead reduction compared to pure QEM. Especially, we observe that there exist a critical number of gates contained in quantum circuits, beyond which their amalgamation is preferable to pure QEM.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 2169-3536eISSN: 2169-3536DOI: 10.1109/ACCESS.2020.3045016Titel-ID: cdi_ieee_primary_9294106
- Format
- –
- Schlagworte
- Amalgamation, Depolarization, Error analysis, hybrid quantum-classical computation, Logic gates, Noise measurement, Probabilistic logic, Quantum computing, quantum error correction codes, quantum error detection codes, Quantum error mitigation, Quantum mechanics, Qubit, Sampling, sampling overhead, Tensors