在室温下从单个分子中按需生成单个光子
1Department of Chemistry, Stanford University, California 94305-5080, USA.
Nature
|October 12, 2000
概括
研究人员使用单个分子开发出可控制的单光子源. 这种决定性源提供了高速率,触发的单光子辐射,对于密码学等量子技术至关重要.
科学领域:
- 量子光学是一种量子光学.
- 固态物理 固态物理
- 量子信息科学 量子信息科学
背景情况:
- 非经典的光状态,如压缩状态,对于先进的测量至关重要.
- 确定性单光子源对于量子技术至关重要,与经典源不同,它们以概率方式发射光子.
研究的目的:
- 实现一个可控制的,决定性的单个光子源.
- 为了证明从固体中的单个分子中触发的单光子辐射.
主要方法:
- 在固体矩阵中嵌入单个分子的光学送.
- 用于确认单光子生成的光子发射统计数据的表征.
主要成果:
- 实现了高速率,触发了单光子发射.
- 证明了同时发射两个光子的近零概率,非常适合量子密码学.
- 在室温下运行源,比现有的触发源提高了性能.
结论:
- 一个简单的,室温,可控制的单光子源成功实现了.
- 这种基于单分子的方法为量子信息处理和安全的量子密码学提供了一个有前途的平台.
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