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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...
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...
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...
The Bohr Model02:18

The Bohr Model

Following the work of Ernest Rutherford and his colleagues in the early twentieth century, the picture of atoms consisting of tiny dense nuclei surrounded by lighter and even tinier electrons continually moving about the nucleus was well established. This picture was called the planetary model since it pictured the atom as a miniature “solar system” with the electrons orbiting the nucleus like planets orbiting the sun. The simplest atom is hydrogen, consisting of a single proton as the nucleus...
Electronic Structure of Atoms02:28

Electronic Structure of Atoms


An atom comprises protons and neutrons, which are contained inside the dense, central core called the nucleus, with electrons present around the nucleus. Taking into account the wave–particle duality of electrons and the uncertainty in position around the nucleus, quantum mechanics provides a more accurate model for the atomic structure. It describes atomic orbitals as the regions around the nucleus where electrons of discrete energy exist, characterized by four quantum numbers:  n, l, ml, and...
Subatomic Particles03:37

Subatomic Particles

Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

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

Published on: September 5, 2019

原子による決定的量子テレポーテーション.

M Riebe1, H Häffner, C F Roos

  • 1Institut für Experimentalphysik, Universität Innsbruck, Technikerstrasse 25, A-6020 Innsbruck, Austria.

Nature
|June 18, 2004
PubMed
まとめ
この要約は機械生成です。

研究者らは,閉じ込められたカルシウムイオン間の決定的量子状態のテレポーテーションを達成した. この画期的な発見は,確率論的方法を克服し,量子情報伝送の重要な進歩を示しています.

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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

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 12, 2013

関連する実験動画

Last Updated: Jun 16, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

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

Published on: September 5, 2019

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

Gradient Echo Quantum Memory in Warm Atomic Vapor
10:00

Gradient Echo Quantum Memory in Warm Atomic Vapor

Published on: November 12, 2013

科学分野:

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

背景:

  • 量子状態のテレポーテーションは,粒子間の量子情報を転送します.
  • 絡み合った光子を用いた以前の方法は確率的であり,選択後の選択が必要でした.
  • 量子力学は,量子状態を変更する測定による課題を提示します.

研究 の 目的:

  • 決定的量子状態テレポーテーションを実証する.
  • 以前のテレポーテーション技術の確率的性質を克服するために.
  • 量子情報処理のための閉じ込められたイオンの潜在能力を示します.

主な方法:

  • 一対の絡み合った捕まったカルシウムイオンを使用した.
  • 絡み合ったペアから1つのイオンと3番目のイオンを含む完全なベル状態測定を行った.
  • 絡み合ったペアの残りのイオンの状態再構築を実行し,測定結果に条件付けられます.

主要な成果:

  • 閉じ込められたカルシウムイオン間の決定的量子状態のテレポーテーションを達成しました.
  • テレポーテーションプロセスの精度75%を測定しました.
  • 証明されたテレポーテーションの量子的性質の明確な証拠を提供した.

結論:

  • 誘導的量子状態のテレポーテーションは,閉じ込められたイオンを使用して達成可能である.
  • この方法は,確率的フォトニックアプローチに比べて改善しています.
  • この結果は,強固な量子情報伝送のための閉じ込められたイオンの有効性を強調しています.