| Project/Area Number |
18340117
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
原子・分子・量子エレクトロニクス・プラズマ
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| Research Institution | The University of Tokyo |
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Principal Investigator |
FURUSAWA Akira The University of Tokyo, Graduate Schol of Engineering, Professor (90332569)
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| Co-Investigator(Kenkyū-buntansha) |
AOKI Takao The University of Tokyo, Graduate School of Engineering, Research Associate (10343146)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2007: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2006: ¥7,800,000 (Direct Cost: ¥7,800,000)
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| Keywords | Quantum non-demolition measurement / Squeezer / Quantum entanglemnt / Squeezed light / ユニバーサルスクイーザー / スクイーズ / 光パラメトリック発振器 / スクイージング |
|---|
| Research Abstract |
We succeeded in creating highly squeezed states of light and our record of squeezing level was 9 dB. By using such highly squeezed states of light, we succeeded in creating high level of quantum entanglement. Moreover, we succeeded in building a universal squeezer with the high level of quantum entanglement and measurement and feed-forward" technique.
By combining two universal squeezers with two beam splitters, we succeeded in building a setup for quantum non-demolition interaction. Finally, we succeeded in quantum non-demolition measurement in two conjugate variables and checked the existence of quantum entanglement between outputs.
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