| Paper Abstract and Keywords |
| Presentation |
2022-12-08 14:00
[Poster Presentation]
Application of Sequential minimal Optimization Methods to UCCSD ansatz
Yuichiro Tashima (Osaka Univ.), Kosuke Ito, Hideaki Hakoshima (Osaka Univ. QIQB), Kosuke Mitarai, Keisuke Fujii (Osaka Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Variational quantum eigensolver (VQE) is expected to be applied to quantum chemical calculations.
This algorithm uses parametrized quantum circuits whose parameters are optimized to minimize energy expectation values of output states.
Efficient parameter optimization techniques is thus a crucial component of VQE.
Among many proposal for VQE-specialized optimizer, a sequential minimal optimization method proposed by Nakanishi textit{et al.} [Phys. Rev. Research, textbf{2}, 043158 (2020)] has been found to provide faster convergence and be more robust against statistical errors compared to existing optimization methods.
In this study, we propose to apply the sequential minimal optimization method to unitary coupled cluster ansatz, which is a popular and effective ansatz for quantum chemistry problem.
We find by numerical simulations that the performance of the proposed method is better than conventional optimizer such as Adam and stochastic gradient descent methods in terms of the number of quantum circuit executions. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Quantum chemical calculation / UCCSD ansatz / Sequential minimal optimization / / / / / |
| Reference Info. |
IEICE Tech. Rep. |
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| Conference Information |
| Committee |
QIT |
| Conference Date |
2022-12-08 - 2022-12-09 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Keio Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Quantum Information |
| Paper Information |
| Registration To |
QIT |
| Conference Code |
2022-12-QIT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Application of Sequential minimal Optimization Methods to UCCSD ansatz |
| Sub Title (in English) |
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| Keyword(1) |
Quantum chemical calculation |
| Keyword(2) |
UCCSD ansatz |
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Sequential minimal optimization |
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| 1st Author's Name |
Yuichiro Tashima |
| 1st Author's Affiliation |
Osaka University (Osaka Univ.) |
| 2nd Author's Name |
Kosuke Ito |
| 2nd Author's Affiliation |
Center for Quantum Information and Quantum Biology, Osaka University (Osaka Univ. QIQB) |
| 3rd Author's Name |
Hideaki Hakoshima |
| 3rd Author's Affiliation |
Center for Quantum Information and Quantum Biology, Osaka University (Osaka Univ. QIQB) |
| 4th Author's Name |
Kosuke Mitarai |
| 4th Author's Affiliation |
Osaka University (Osaka Univ.) |
| 5th Author's Name |
Keisuke Fujii |
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Osaka University (Osaka Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2022-12-08 14:00:00 |
| Presentation Time |
60 minutes |
| Registration for |
QIT |
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