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関連する概念動画

Superconductor01:24

Superconductor

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A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
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Parallel Processing01:20

Parallel Processing

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The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
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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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Types Of Superconductors01:28

Types Of Superconductors

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A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
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Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...
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Consider a circuit with two sinusoidal voltage sources. Each one influences the circuit independently, and the superposition principle helps us understand the combined effect by adding up the responses from each source.
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関連する実験動画

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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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プログラム可能な超伝導プロセッサを用いた量子優位性

Frank Arute1, Kunal Arya1, Ryan Babbush1

  • 1Google AI Quantum, Mountain View, CA, USA.

Nature
|October 25, 2019
PubMed
まとめ
この要約は機械生成です。

量子コンピュータは 特定のタスクを 古典的なスーパーコンピュータよりも 何百万倍も速く実行することで 量子優位性を示しています 53キビットのプロセッサを用いて コンピューティングの新たな時代を切り開きました

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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関連する実験動画

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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科学分野:

  • 量子コンピューティング
  • 超伝導クビット
  • 計算上の複雑さ

背景:

  • 量子コンピュータは従来のプロセッサと比較して 特定の計算作業に指数関数的なスピードアップを約束します
  • 大きな計算空間で動作できる高精度量子プロセッサの構築は 根本的な課題です

研究 の 目的:

  • 超伝導量子プロセッサを使って 量子優位性を証明する
  • 大きな計算空間で量子状態を作成し,サンプルを採取します.

主な方法:

  • プログラム可能な超伝導量子ビットを搭載した プロセッサを使って 53個の量子ビットの 量子状態を作り出しました
  • 実験を繰り返し結果の確率分布をサンプリングした.
  • 古典的なシミュレーションを使って検証した結果です.

主要な成果:

  • 2^53 (約10^16次元) の計算空間で量子状態を成功裏に作成しました.
  • シカモアプロセッサは 200秒で 完成させました 従来のスーパーコンピュータには 約1万年かかるでしょう
  • この特定のタスクのために知られているすべての古典的なアルゴリズムと比較して劇的な速度増加を達成しました.

結論:

  • 量子優位性の実験的な実現は,特定の計算作業のために.
  • 開発は新しい予測されたコンピューティング パラダイムを予告しています.
  • 古典的なコンピュータでは解決できない複雑な問題を解くための量子プロセッサの可能性を強調しています.