| Paper Abstract and Keywords |
| Presentation |
2018-06-04 13:20
[Poster Presentation]
Realization of High-Speed Adaptive Quantum State Estimation 2
Saki Nohara, Ryo Okamoto (Kyoto Univ.), Koichi Yamagata (Chuo Univ.), Akio Fujiwara (Osaka Univ.), Shigeki Takeuchi (Kyoto Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
For the development of quantum information technology, it is essential to provide a method to efficiently estimate the quantum state (parameter). However, the optimal measurement for estimating an unknown parameter depends on the parameter itself. To surmount this problem, the adaptive quantum state estimation (AQSE) scheme was advocated. In AQSE, for each measurement, the value of parameter is estimated and then the measurement system is optimized for the estimated value.
In our demonstration of AQSE, the estimation speed was limited by half wave plate on mechanical rotator used for the measurement system. Here, we demonstrate AQSE using liquid crystal retarder for the measurement system. We realized a substantial speed-up of estimation time, keeping the accuracy of estimation at the same level. In fact, it took 0.40 second per photon in the previous study, whereas 0.073 second per photon in the present. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
optical phase measurement / adaptive quantum state estimation / / / / / / |
| Reference Info. |
IEICE Tech. Rep. |
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| Conference Information |
| Committee |
QIT |
| Conference Date |
2018-06-04 - 2018-06-05 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
ICCH Ran |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Quantum Information |
| Paper Information |
| Registration To |
QIT |
| Conference Code |
2018-06-QIT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Realization of High-Speed Adaptive Quantum State Estimation 2 |
| Sub Title (in English) |
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optical phase measurement |
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adaptive quantum state estimation |
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| 1st Author's Name |
Saki Nohara |
| 1st Author's Affiliation |
Kyoto University (Kyoto Univ.) |
| 2nd Author's Name |
Ryo Okamoto |
| 2nd Author's Affiliation |
Kyoto University (Kyoto Univ.) |
| 3rd Author's Name |
Koichi Yamagata |
| 3rd Author's Affiliation |
Chuo University (Chuo Univ.) |
| 4th Author's Name |
Akio Fujiwara |
| 4th Author's Affiliation |
Osaka University (Osaka Univ.) |
| 5th Author's Name |
Shigeki Takeuchi |
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Kyoto University (Kyoto Univ.) |
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| Date Time |
2018-06-04 13:20:00 |
| Presentation Time |
90 minutes |
| Registration for |
QIT |
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