Realization and application of single photons in a single spatio-temporal mode by group velocity engineering
| Project/Area Number |
20244062
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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 |
Atomic/Molecular/Quantum electronics
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| Research Institution | Hokkaido University |
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Principal Investigator |
TAKEUCHI Shigeki Hokkaido University, 電子科学研究所, 教授 (80321959)
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| Co-Investigator(Kenkyū-buntansha) |
KURIMURA Sunao 独立行政法人物質・材料研究機構, 光科学センター, 主任研究員 (10287964)
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| Co-Investigator(Renkei-kenkyūsha) |
OKAMOTO Ryo 北海道大学, 電子科学研究所, 助教 (10435951)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥49,010,000 (Direct Cost: ¥37,700,000、Indirect Cost: ¥11,310,000)
Fiscal Year 2010: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2009: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2008: ¥22,230,000 (Direct Cost: ¥17,100,000、Indirect Cost: ¥5,130,000)
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| Keywords | 量子情報 / 単一光子 / 量子光学 / 非線形光学 / 疑似位相整合 |
|---|
| Research Abstract |
The aim of this project was to realize single photon sources with spatio-temporal coherence and its application to optical quantum circuits. As a result, we succeed in the realization of a single photon source with two photon interference visibility of 95.8%. We also succeeded in the realization of 'an entanglement filter' which extracts certain polarization correlations between the two-photon inputs, and 'controlled-NOT optical quantum circuit' which was proposed by Knill et. al. in 2001 and the first step towards the scalable linear optics quantum computation. We also developed quasi phase matching devices for the control of group velocity dispersion and evaluated them.
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Report
(4 results)
Research Products
(54 results)
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[Presentation] Photonic quantum circuits and its application2010
Author(s)
竹内繁樹
Organizer
Quantum2010 5th Workshop ad memoriam of Carlo Novero Advances in Foundations of Quantum Mechanics and Quantum Information with atoms and photons/3rd Italian Quantum information Science Conference IQIS 2010
Place of Presentation
I.N.RI.M. Conference Hall (formerly IEN Galileo Ferraris)(Invited)
Year and Date
2010-05-24
Related Report
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[Presentation] Photonic quantum circuits and its application2010
Author(s)
S.Takeuchi
Organizer
Quantum2010 5th Workshop ad memoriam of Carlo Novero Advances in Foundations of Quantum Mechanics and Quantum Information with atoms and photons/3rd Italian Quantum information Science Conference IQIS 2010
Place of Presentation
I.N.RI.M.Conference Hall (formerly IEN Galileo Ferraris), Italy 招待講演
Year and Date
2010-05-24
Related Report
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