Realization of single photon source for quantum telecommunication
量子通信单光子源的实现
基本信息
- 批准号:12555008
- 负责人:
- 金额:$ 6.27万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2000
- 资助国家:日本
- 起止时间:2000 至 2001
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Quantum information technology ( QIT ) is now attracting many people because of its functions that cannot be realized using conventional technologies. A single photon generator, that emits a single photon in each pulse, is indispensable device for the realization of QIT. Recent proposals had a problem that the average number of photons are less than 0.1 and too small for the real use.In this research project, we aimed to realize a real single photon generator, which emits single photons with high probability. Our method is to control the fast gating shutter for the signal photons using the detection signals of control photons. Our goal we aimed in the proposal was as follows: The realization of single photon source with more than 10kHz repetition rate, and also the single photon should be localized with in 1ns time window.In the 2-year-long project, we first performed the characterization of the twin photon beam source and also the design of the system of the single photon source. In the second year, we succeeded in the development of the 'high-speed high-transmittance optical shutter' and 'optical delay line with high-transmittance.' We had almost finished the construction of the whole experimental system, however, the sudden accident of the trouble of the pump Argon ion laser caused the delay of the experiment unfortunately. After the end of the project (2002.3), we continued this experiment partly supported by JST-PRESTO project. In conclusion, we succeeded to perform the experiment which clearly showed the highest probability (0.4) to create single photons in a pulse, and in the experiment we observed a very small timing fluctuation less than 1ns, those are the goal we aimed in the proposal.
量子信息技术(QIT)因其具有传统技术无法实现的功能而受到人们的广泛关注。单光子发生器是实现QIT不可缺少的器件,它在每个脉冲中发射一个单光子。目前提出的单光子发生器存在平均光子数小于0.1的问题,本课题的研究目标是实现一个真实的的单光子发生器,以高概率发射单光子。我们的方法是使用控制光子的探测信号来控制信号光子的快速门控快门。我们的目标是:实现重复频率大于10 kHz的单光子源,并在1 ns的时间窗口内实现单光子的局域化。在为期两年的项目中,我们首先完成了双光子源的特性研究和单光子源系统的设计。第二年,我们成功地开发了“高速高透过率光学快门”和“高透过率光学延迟线”。整个实验系统的搭建工作已经基本完成,但由于泵浦氩离子激光器的突然故障,导致了实验的延迟。在项目结束后(2002.3),我们继续进行了部分由JST-PRESTO项目支持的实验。总之,我们成功地进行了实验,该实验清楚地显示了在脉冲中产生单光子的最高概率(0.4),并且在实验中我们观察到了小于1 ns的非常小的定时波动,这些都是我们的目标提案。
项目成果
期刊论文数量(32)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Shigeki Takeuchi: "An overview on quantum computation and quantum telecommunication"SURI KAGAKU. 456. 64-71 (2001)
Shigeki Takeuchi:“量子计算和量子电信概述”SURI KAGAKU。
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Shigeki Takeuchi: "Quantum information devices and nano-technology"Functional materials. 22. 44-51 (2002)
竹内茂树:《量子信息器件与纳米技术》功能材料。
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- 影响因子:0
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Shigeki Takeuchi: "Beam-like twin photon generation using type-II down conversion"Optics Letters. (印刷中). (2001)
Shigeki Takeuchi:“使用 II 型下转换的束状双光子生成”光学快报(2001 年出版)。
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竹内繁樹: "光量子ビットを用いた量子計算機"光学. 29巻12号. 745-750 (2000)
Shigeki Takeuchi:“使用光学量子位的量子计算机”,第 29 卷,第 12 期。745-750 (2000)
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- 影响因子:0
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竹内 繁樹: "量子情報デバイスとナノテクノロジー"機能材料. 22巻1号. 44-51 (2002)
Shigeki Takeuchi:“量子信息器件和纳米技术”,第 22 卷,第 1. 44-51 期(2002 年)。
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TAKEUCHI Shigeki其他文献
TAKEUCHI Shigeki的其他文献
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{{ truncateString('TAKEUCHI Shigeki', 18)}}的其他基金
Toward the experimental verification of CS modified gravity using photonic interferometers
利用光子干涉仪对 CS 修正重力进行实验验证
- 批准号:
26610052 - 财政年份:2014
- 资助金额:
$ 6.27万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Prefrontal-TMS affects cognitive process in the error behavior.
前额叶TMS影响错误行为中的认知过程。
- 批准号:
23500679 - 财政年份:2011
- 资助金额:
$ 6.27万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The TMS impact on performance and cognitive functions
TMS 对表现和认知功能的影响
- 批准号:
21700566 - 财政年份:2009
- 资助金额:
$ 6.27万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Realization and application of single photons in a single spatio-temporal mode by group velocity engineering
单时空模式单光子群速度工程的实现与应用
- 批准号:
20244062 - 财政年份:2008
- 资助金额:
$ 6.27万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
The type of subjective cue information influences error processing.
主观提示信息的类型影响错误处理。
- 批准号:
19700485 - 财政年份:2007
- 资助金额:
$ 6.27万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
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