| Paper Abstract and Keywords |
| Presentation |
2016-05-30 09:50
Evaluation of quantum 1D repetition code's performance against noises with coherence
Takanori Sugiyama (Osaka Univ.), Keisuke Fujii (Univ. of Tokyo), Haruhisa Nagata, Fuyuhiko Tanaka (Osaka Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
As error rates of quantum gates implemented in recent experiments approach a fault-tolerant threshold of a 2D planar surface code against a depolarizing noise model, it becomes more important to investigate performance of quantum error correction codes against more general and realistic noise models. The standard approach assuming depolarizing noise models, which is not realistic, can overestimate the performance, and it is not valid to apply the results to experiments. On the other hand, a rigorous approach with the diamond norm is applicable to realistic noise models but greatly underestimates the performance and is not practical. Here we propose a new theoretical framework for evaluating performances of quantum error correction, which is practical and applicable to a wider class of noise models. We apply the method to a quantum 1D repetition code, and numerically evaluate the performance. Our numerical results clarify the effect of coherence in noise on the performance of the code. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Quantum error correction / Quantum 1D repetition code / Fault-tolerance threshold / Quantum noise / / / / |
| Reference Info. |
IEICE Tech. Rep. |
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| Conference Information |
| Committee |
QIT |
| Conference Date |
2016-05-30 - 2016-05-31 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kochi University of Technology Eikokuji campus |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Quantum Information |
| Paper Information |
| Registration To |
QIT |
| Conference Code |
2016-05-QIT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Evaluation of quantum 1D repetition code's performance against noises with coherence |
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| Keyword(1) |
Quantum error correction |
| Keyword(2) |
Quantum 1D repetition code |
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Fault-tolerance threshold |
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Quantum noise |
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| 1st Author's Name |
Takanori Sugiyama |
| 1st Author's Affiliation |
Osaka University (Osaka Univ.) |
| 2nd Author's Name |
Keisuke Fujii |
| 2nd Author's Affiliation |
The University of Tokyo (Univ. of Tokyo) |
| 3rd Author's Name |
Haruhisa Nagata |
| 3rd Author's Affiliation |
Osaka University (Osaka Univ.) |
| 4th Author's Name |
Fuyuhiko Tanaka |
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Osaka University (Osaka Univ.) |
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| Speaker |
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| Date Time |
2016-05-30 09:50:00 |
| Presentation Time |
20 minutes |
| Registration for |
QIT |
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