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相关实验视频

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Gradient Echo Quantum Memory in Warm Atomic Vapor
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宽带波导量子内存用于纠的光子.

Erhan Saglamyurek1, Neil Sinclair, Jeongwan Jin

  • 1Institute for Quantum Information Science, and Department of Physics and Astronomy, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.

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概括
此摘要是机器生成的。

研究人员展示了一种新的量子内存,能够存储和检索光子-光子纠. 量子通信技术的这一突破利用了化的酸波导,为先进的量子网络铺平了道路.

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科学领域:

  • 量子信息科学 量子信息科学
  • 固态物理 固态物理
  • 量子光学是一种量子光学.

背景情况:

  • 光与物质之间的量子状态的可逆转移对于量子通信至关重要.
  • 量子记忆必须在存储期间保持纠,用于诸如量子重复器和网络之类的应用.
  • 现有的量子内存协议在光谱带宽方面存在局限性.

研究的目的:

  • 为了证明光子-光子纠的可逆转移到光子和原子激发之间的纠.
  • 开发具有增强光谱接受性的宽带量子内存.
  • 评估开发的量子内存的纠保护能力.

主要方法:

  • 使用了添加的酸波导.
  • 采用了光子回声量子内存协议.
  • 增加了从100 MHz到5 GHz的频谱接受度.
  • 通过贝尔不等式违规和储存前后纠比较来评估纠保存.

主要成果:

  • 实现了光子-光子纠的可逆转移到光子集体原子激发纠.
  • 在5 GHz的频谱接受度显著增加.
  • 贝尔不等式违反和纠比较证实了近乎完美的映射过程,在统计错误范围内.
  • 开发了一种宽带,集成的量子内存设备.

结论:

  • 开发的宽带量子内存成功地以高保真度存储和检索纠.
  • 这种集成的酸装置简化了量子通信接口的频率匹配.
  • 这一进步使得全量子网络更加接近现实.