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相关概念视频

Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

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A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the...
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相关实验视频

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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
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高速线性光学量子计算使用主动前.

Robert Prevedel1, Philip Walther, Felix Tiefenbacher

  • 1Institute for Experimental Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria. robert.prevedel@univie.ac.at

Nature
|January 5, 2007
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概括
此摘要是机器生成的。

研究人员展示了一种用于单向量子计算的新的前技术. 这种方法提高了光子量子比特操作的可靠性,为更快,更可靠的量子计算机铺平了道路.

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相关实验视频

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科学领域:

  • 量子计算是一种量子计算.
  • 量子信息科学 量子信息科学
  • 光子学是指光子学的使用方法.

背景情况:

  • 光子量子比特提供了低脱凝度,但缺乏光子对光子相互作用的两个量子比特门.
  • 通过测量诱导的非线性来进行概率门运算是一种解决方法.
  • 一向量子计算依赖于集群状态,需要纠正错误.

研究的目的:

  • 在单向量子计算实验中实施和测试连接测量和主动前方案.
  • 在单向量子计算中解决随机量子测量错误.
  • 用光子量子比特来提高量子门操作的保真性和速度.

主要方法:

  • 使用连接的测量方案和主动前.
  • 用于高速前送操作的电光调制器.
  • 专注于具有完美的集群状态和最小光子损失的实验.

主要成果:

  • 在理想条件下证明了量子计算方案的良好运行忠实性.
  • 为检测到的光子展示了前元件的高速和低误差性能.
  • 在150 ns以下的时间内完成了个别的计算步骤 (feed-forward周期).

结论:

  • 开发的前技术对于决定性的单向量子计算至关重要.
  • 组件的速度和低误差率对于未来的量子计算机开发具有重要意义.
  • 集群状态生成和检测方面的进步是大规模单向量子计算机的关键.