Design and Implementation of High-Fidelity Quantum Gates without Feedback
| Project/Area Number |
25400422
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Kinki University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKAHARA Mikio 近畿大学, 理工学部, 教授 (90189019)
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| Co-Investigator(Renkei-kenkyūsha) |
MIZUOCHI Norikazu 大阪大学, 基礎工学部, 准教授 (00323311)
ICHIKAWA Tsubasa 学習院大学, 理学部, 研究員 (50572658)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 量子制御 / 量子情報 / 量子コンピュータ / 複合量子ゲート / 量子誤り訂正符号 / ＮＭＲ / 核磁気共鳴 / 頑強な量子ゲート / 量子ゼノン効果 / 量子誤り訂正 / NMR測定への応用 / 位相緩和の抑制 / 国際情報交換 / 選択的2量子ビット演算 |
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| Outline of Final Research Achievements |
Composite quantum gates made of possibly poor-quality ones can be made robust against systematic errors without feedback control. Very precise quantum gates are proposed by adding feedback control on these composite quantum gates. Therefore, composite quantum gates are important in order to realize precise quantum control.
We proposed a new and intuitive method how to design such composite quantum gates and applied these in order to demonstrate a quantum Zeno effect. Moreover, we demonstrated a simple yet interesting quantum error correction scheme and proposed a new quantum system of neutral atoms for a quantum computer. We also proposed and demonstrated a selective 2-qubit gate for NMR quantum computer
experiments.
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Report
(4 results)
Research Products
(28 results)
