2013 Fiscal Year Final Research Report
Quantum entanglements and holographic memory operation in silicon
| Project/Area Number |
22241024
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nanostructural science
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| Research Institution | Keio University |
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Principal Investigator |
ITOH Kohei 慶應義塾大学, 理工学部, 教授 (30276414)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 量子情報 |
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| Research Abstract |
In order to realize silicon-based quantum computers, we have investigated the mechanisms and suppression of decoherence of electron and nuclear spin qubits, generated and detected highly pure quantum entanglements between phosphorus-donor electron and nuclear spins, developed a multi-state-storage systems known as quantum holographic memories, and explored the possibilities of bismuth donors as quantum memories to connect directly superconducting qubits. While above mentioned topics were listed in the originally proposed plan, we have further developed a way to utilize Si-29 nuclear spins as quantum memories and investigated a variety of spin triplet systems in silicon for application to quantum information processing.
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[Journal Article] Electron Spin Coherence Exceeding Seconds in High Purity Silicon2012
Author(s)
A. M. Tyryshkin, S. Tojo, J. J. L. Morton, H. Riemann, N. V. Abrosimov, P. Becker, H.-J. Pohl, T. Schenkel, M. L. W. Thewalt, K. M. Itoh, and S. A. Lyon
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Journal Title
Nature Materials
Volume: 11
Pages: 143-147
DOI
Peer Reviewed
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[Journal Article] Linewidth of Low-Field Electrically Detected Magnetic Resonance of Phosphorus in Isotopically Controlled Silicon2011
Author(s)
H. Morishita, E. Abe, W. Akhtar, L. S. Vlasenko, A. Fujimoto, K. Sawano, Y. Shiraki, L. Dreher, H. Riemann, N. V. Abrosimov, P. Becker, H.-J. Pohl, M. L. W. Thewalt, M. S. Brandt, and K. M. Itoh
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Journal Title
Applied Physics Express
Volume: 4
Pages: 021302
DOI
Peer Reviewed
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[Journal Article] Electron spin coherence of phosphorus donors in silicon : Effect of environmental nuclei2010
Author(s)
E. Abe, A. M. Tyryshkin, S. Tojo, J. J. L. Morton, W. M. Witzel, A. Fujimoto, J. W. Ager, E. E. Haller, J. Isoya, S. A. Lyon, M. L. W. Thewalt, and K. M. Itoh
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Journal Title
Phys. Rev.
Volume: B82
Pages: 121201
DOI
Peer Reviewed
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[Presentation] NV Centers in Isotopically Enriched Diamond for Quantum Sensor Application2013
Author(s)
K. Ohashi, T. Rosskopf, I. Gros, H. Watanabe, S. Tomizawa, J. Iyshi-Haase, T. Ishikawa, K. M. Fu, C. Santori, V. M. Acosta, R. G. Beausoleil, S. Shikata, C. L. Degen, and K. M. Itoh
Organizer
JSAP-MRS Joint Symposia
Place of Presentation
Kyoto, Japan
Year and Date
20130916-20
Invited
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[Presentation] Growth and Characterization of Isotopically Enriched CVD 12C Films with Well-behaved Near Surface NVs2013
Author(s)
K. Ohashi, T. Rosskopf, I. Gros, H. Watanabe, S. Tomizawa, J. Ishi-Hayase, T. Ishikawa, K. M. Fu, C. Santori, V. M. Acosta, R. G. Beausoleil, S. Shikata, C. L. Degen, and K. M. Itoh
Organizer
The Workshop on Diamond .Spintornics, Photonics, Bio-applications
Place of Presentation
Hong Kong
Year and Date
20130427-29
Invited
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