| Project/Area Number |
16K17772
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | Osaka University |
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Principal Investigator |
Ikuta Rikizo 大阪大学, 基礎工学研究科, 助教 (90626475)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 量子エレクトロニクス / 量子情報 / 量子通信 / 波長変換 / エンタングルメント / 量子中継 / 量子メモリ / 冷却原子 / 冷却原子集団 / 単一光子 |
|---|
| Outline of Final Research Achievements |
We studied about establishment of entanglement between distant quantum memories through an optical fiber-based quantum communication. For the effective fiber-based quantum communication with quantum repeater algorithm, entanglement between a quantum memory and a telecom photon is vital. We developed a polarization-insensitive quantum frequency converter. By using the device, we converted a wavelength of a visible photon entangled with a rubidium atomic cloud as a quantum memory to the telecom wavelength. As a result, we achieved an entanglement between the atoms and the telecom photon. We performed other experiments for long distance quantum communication: demonstration of the two photon interference without timing synchronization of the photons, and faithful entanglement distribution of polarized photons via noisy optical fibers.
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