2013 Fiscal Year Final Research Report
Quantum information processing using an ion trap system
| Project Area | Quantum cybernetics - interdisciplinary studies of quantum controls and developments toward quantum computing |
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| Project/Area Number |
21102006
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Osaka University |
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Principal Investigator |
URABE Shinji 大阪大学, 基礎工学研究科, 教授 (20304040)
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| Co-Investigator(Renkei-kenkyūsha) |
TANAKA Utako 大阪大学, 大学院基礎工学研究科, 講師 (20359087)
TOYODA Kenji 大阪大学, 大学院基礎工学研究科, 助教 (20314403)
HAYASAKA Kazuhiro 情報通信研究機構, 研究マネージャー (10359086)
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| Project Period (FY) |
2009-07-23 – 2014-03-31
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| Keywords | イオントラップ / 量子情報処理 / 量子ｴﾚｸﾄﾛﾆｸｽ / レーザー冷却 |
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| Research Abstract |
Multi-zone planar traps have been developed and transporting ions has been succeeded. By placing small magnets on the back side of the trap substrate, a high magnetic field gradient that is sufficient for quantum state manipulation has been generated. Using the stimulated Raman adiabatic passage, a universal single-qubit gate based on the geometric phase factor has been realized. The decoherence-free two-partite entangled state has been generated successfully, and using the multi-level stimulated Raman adiabatic passage method, the four-partite Dicke state has been generated with high fidelity. We have succeeded in realizing a quantum rotor, in which three ultracold calcium ions arrange themselves in a triangular shape in a linear Paul trap, and demonstrated the Aharonov-Bohm effect with quantum tunneling.
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