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関連する概念動画

Quantum Numbers02:43

Quantum Numbers

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It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
52.3K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

59.7K
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 hydrogen spectra.
59.7K
Oscillations In An LC Circuit01:30

Oscillations In An LC Circuit

3.2K
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
3.2K
Forced Oscillations01:06

Forced Oscillations

8.0K
When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.
8.0K
Damped Oscillations01:07

Damped Oscillations

7.3K
In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...
7.3K
Limits with Oscillating Discontinuities01:19

Limits with Oscillating Discontinuities

486
An oscillating discontinuity is a type of discontinuity in which a function’s values fluctuate infinitely often as the input approaches a particular point. Unlike jump discontinuities, where the function suddenly shifts between two values, or infinite discontinuities, where the function diverges without bound, an oscillating discontinuity arises from rapid back-and-forth variation. Because the function never stabilizes toward a single value, no finite limit exists at that point.One of the...
486

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Updated: Feb 11, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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2つのマイクロメカニカルオシレータの間のリモート量子エンタグリング

Ralf Riedinger1, Andreas Wallucks2, Igor Marinković2

  • 1Vienna Center for Quantum Science and Technology, Faculty of Physics, University of Vienna, Vienna, Austria.

Nature
|April 27, 2018
PubMed
まとめ
この要約は機械生成です。

研究者は,シリコンフォトニクスプラットフォームを使用して,別々のチップ上の2つのマイクロメカニカルオシレータの絡み合いを示しています. 通信波長で量子状態の分布を可能にし 量子ネットワークを発展させました

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Molecular Entanglement and Electrospinnability of Biopolymers

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関連する実験動画

Last Updated: Feb 11, 2026

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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科学分野:

  • 量子物理学と工学
  • 固体量子システム
  • 量子情報科学

背景:

  • 量子ネットワークの鍵となる量子資源は 絡み合いであり 遠く離れたシステム間の 相関関係を可能にします
  • 以前の絡み合い分布方法は,原子蒸気,個々の原子/イオン,または固体欠陥を使用した.
  • 実践的な量子ネットワークには 特定の動作波長,高い帯域幅,長いメモリ寿命が必要です.

研究 の 目的:

  • 絡み合いの分布のための新しいマイクロ機械化された固体プラットフォームを導入する.
  • チップベースの光学共振器の絡み合いを示すために.
  • 既存の光ファイバー量子ネットワークとの統合を可能にします

主な方法:

  • ナノ構造のシリコンビームを搭載した 純粋にマイクロ加工された 固体プラットフォームを使用した.
  • チップベースのオプトメカニカル共鳴器を作成しました.
  • 1,550nm近くの光学場を使用した 分散された絡み合った量子状態.

主要な成果:

  • 2つのマイクロメカニカルオシレータの絡み合いを成功裏に作成し,実証しました.
  • 絡み合った振動器は20cm離れた2つのチップに配置されました.
  • 絡み合いの分布は,標準的な光ファイバー通信帯に適合する波長で発生した.

結論:

  • 開発されたシリコンベースの光学共振器システムは,量子ネットワークの実行可能なプラットフォームです.
  • この技術は現実的な光ファイバー量子ネットワークに直接組み込むことを容易にする.
  • シリコンフォトニクスに基づいた広域量子ネットワークの 重要な進歩です