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The Quantum-Mechanical Model of an Atom02:45

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Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing...
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Gradient Echo Quantum Memory in Warm Atomic Vapor
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一个毫秒的集成量子内存用于光子量子比特.

Yu-Ping Liu1,2,3, Zhong-Wen Ou1,2,3, Tian-Xiang Zhu1,2,3

  • 1CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China.

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概括
此摘要是机器生成的。

研究人员开发了一种新的集成量子内存,使用激光编写的波导在欧添加剂的晶体中. 这种量子内存实现了超过1毫秒的记录存储时间,这对于量子网络至关重要.

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科学领域:

  • 量子信息科学 量子信息科学
  • 光学和光子学 在光学和光子学.
  • 材料科学 材料科学 材料科学

背景情况:

  • 量子记忆对于量子重复器和网络至关重要.
  • 目前的集成量子记忆具有有限的存储寿命 (微秒).
  • 实现更长的存储时间对于实际的量子应用至关重要.

研究的目的:

  • 为了证明光子量子比特的长寿命集成量子内存.
  • 克服现有的集成量子存储设备的局限性.
  • 提高量子内存操作的效率和寿命.

主要方法:

  • 在151Eu3+:Y2SiO5晶体中制造激光写的光学波导.
  • 通过芯片上的电波导实现动态解,以减轻旋转脱相.
  • 光子量子比特存储寿命和效率的表征.

主要成果:

  • 为光子量子比特实现了1021毫秒的量子存储寿命.
  • 在1.021 ms时显示储存效率为12.0 ± 0.5%.
  • 集成的量子内存在效率方面超过了简单的光纤延迟线.

结论:

  • 开发的基于波导的量子内存可以显著延长存储时间.
  • 这项技术是构建实用的量子重复器的有希望的候选者.
  • 进一步与磁场的整合可能会导致可运输的量子记忆.