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関連する概念動画

The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

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. Schrödinger...
Quantum Numbers02:43

Quantum Numbers

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.
The de Broglie Wavelength02:32

The de Broglie Wavelength

In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
Electromagnetic Waves in Matter01:30

Electromagnetic Waves in Matter

Electromagnetic waves can travel in the vacuum as well as in matter. For example light, which is an electromagnetic wave, can travel through air, water, or glass.
Consider the electromagnetic wave passing through a dielectric medium. In such a case, Maxwell's equations get modified. In Ampere's law, ε0 , the dielectric permittivity of free space is replaced with ε, the permittivity of dielectric. Also, the vacuum permeability μ0 is replaced by the permeability of the medium, μ.
Furthermore, the...
Electric Field of Two Equal and Opposite Charges01:30

Electric Field of Two Equal and Opposite Charges

Atoms generally contain the same number of positively and negatively charged particles, protons, and electrons. Hence, they are electrically neutral. However, the centers of the positive and negative charges do not always coincide. In such a scenario, the electric field of an atom may not be zero.
A separation of the positive and negative charges can lead to a weak, remnant effect of the positive and negative charges. The expectation is that the more the distance between the positive and...
The Uncertainty Principle04:08

The Uncertainty Principle

Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He mathematically...

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関連する実験動画

Updated: Jun 26, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

遠く離れた物質クビット間の量子テレポーテーション.

S Olmschenk1, D N Matsukevich, P Maunz

  • 1Joint Quantum Institute (JQI) and Department of Physics, University of Maryland, College Park, MD 20742, USA. smolms@umd.edu

Science (New York, N.Y.)
|January 24, 2009
PubMed
まとめ
この要約は機械生成です。

研究者らは,1メートル離れた2つのイテルビウムイオン (Yb+) 原子間の量子ビットの量子テレポーテーションを達成し,90%の精度を示した. これにより,量子通信と計算能力が向上する.

さらに関連する動画

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

関連する実験動画

Last Updated: Jun 26, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

科学分野:

  • 量子物理学とは,量子物理学のことです.
  • 原子物理 原子物理学
  • 量子情報科学とは,量子情報科学である.

背景:

  • 量子テレポーテーションは,絡み合いと古典的な通信を使用して量子状態の転送を可能にします.
  • 原子量子記憶は,量子情報を保存し,操作するために不可欠です.

研究 の 目的:

  • 原子量子記憶間の量子テレポーテーションを実証する.
  • 量子情報の高精度伝送をマクロスケピカルな距離を越えて達成するために.

主な方法:

  • 閉じ込められたイテルビウムイオン (Yb+) を原子量子記憶として利用する.
  • フォトンの干渉と検出によるイオン間の予告された絡まりを確立する.
  • 光ファイバーをフォトンの誘導と古典的な通信に使用しています.

主要な成果:

  • 量子ビットの量子テレポーテーションが,約1メートル離れた2つのYb+イオン間で成功しました.
  • テレポートされた量子状態の平均忠誠度90%を達成しました.
  • 完全な量子状態のセットでプロトコルを実証しました.

結論:

  • この研究で,遠く離れた原子量子ビット間の量子テレポーテーションが成功しました.
  • 達成された高精度は,強固な量子情報伝送の可能性を示しています.
  • この方法は,スケーラブルな量子コンピューティングと通信ネットワークのための有望なプラットフォームを提供します.