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Learning logical quantum noise in quantum error correction
Publikationstyp
Journal Article
Publikationsdatum
2023-05-19
Sprache
English
Enthalten in
Volume
130
Issue
20
Article Number
200601
Citation
Physical Review Letters 130 (20): 200601 (2023-05-19)
Publisher DOI
Scopus ID
ArXiv ID
The characterization of quantum devices is crucial for their practical implementation but can be costly in experimental effort and classical post-processing. Therefore, it is desirable to measure only the information that is relevant for specific applications and develop protocols that require little additional effort. In this work, we focus on the characterization of quantum computers in the context of stabilizer quantum error correction. Our main result is that the logical error channel induced by Pauli noise can be estimated from syndrome data under minimal conditions. More precisely, we show that the estimation is possible as long as the code can correct the noise.
Schlagworte
Quantum Physics