| Project/Area Number |
15K13385
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Optical engineering, Photon science
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| Research Institution | Keio University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 量子光学 / スクイーズド光 / 広帯域光 / 周波域量子相関 / 適応制御 / 周波数域量子相関 / 量子相関光 / フェムト秒レーザー / 量子クラスタ状態 / ファイバ非線形光学 |
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| Outline of Final Research Achievements |
When utilizing ultrafast nonlinear optics such as four-wave mixing in a fiber, we can generate quantum correlation among frequency modes of a laser pulse propagating through the fiber.
First, we constructed a multimode quantum theory of nonlinear propagation in optical fibers, where we can extract orthogonal eigenfunctions from a broad spectrum. Using this theory, we proved that higher photon-number density squeezing can be obtained up to much higher eigenmodes via nonlinear pulse propagation.
Furthermore, we demonstrated that four-mode cluster states in any combinations can be generated among the frequency modes in a laser pulse propagating through a fiber when the initial spectral phase are adaptively shaped.
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