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関連する概念動画

Quantum Numbers02:43

Quantum Numbers

50.8K
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.
50.8K
The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

58.1K
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.
58.1K
The Hall Effect01:30

The Hall Effect

4.4K
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
4.4K
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)01:19

2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

1.5K
Heteronuclear single-quantum correlation spectroscopy (HSQC) is a 2D NMR technique that reveals one-bond correlations between hydrogen and a heteronucleus. The HSQC experiment is similar to the heteronuclear correlation experiment (HETCOR) but is more sensitive. In the HSQC spectrum, the proton chemical shift is plotted on the horizontal F2 axis, while the 13C chemical shift is plotted on the vertical F1 axis. The corresponding proton and 13C spectra are also shown. The HSQC contour plot does...
1.5K
The Dot Product01:26

The Dot Product

263
Measuring how one directional quantity affects another along a specific path involves comparing their orientation and strength. When two such quantities are represented using direction and amount, a numerical result is computed to show how much one acts along the path of the other. This result comes from a rule combining both inputs' horizontal and vertical parts and adding the results.This calculation gives a single value that grows larger when both inputs point in similar directions and...
263
Dot Product01:29

Dot Product

981
The dot product is an essential concept in mathematics and physics.
In engineering, the dot product of any two vectors is the product of the magnitudes of the vectors and the cosine of the angle between them. It is denoted by a dot symbol between the two vectors.
Consider a vehicle pulling an object along the ground using a rope. If the rope makes an angle with the horizontal axis, the work done can be calculated using the dot product of the force applied and the object's displacement.
The dot...
981

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関連する実験動画

Updated: Feb 6, 2026

Production and Targeting of Monovalent Quantum Dots
10:16

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

26.1K

インタラクション駆動量子ホール グラフェン量子ドットにおけるウェディングケーキのような構造

Christopher Gutiérrez1,2, Daniel Walkup1,2, Fereshte Ghahari1,2

  • 1Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.

Science (New York, N.Y.)
|August 25, 2018
PubMed
まとめ

研究者はグラフェンを用いて量子相対論的な物質をシミュレートし,シェル状態がランドーレベルに凝縮することを観察しました. 卓上実験を用いて 極限条件下での電子の相互作用と 相対論的物質の洞察を 提供しています

さらに関連する動画

Compact Quantum Dots for Single-molecule Imaging
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Compact Quantum Dots for Single-molecule Imaging

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Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
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Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

Published on: February 6, 2016

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関連する実験動画

Last Updated: Feb 6, 2026

Production and Targeting of Monovalent Quantum Dots
10:16

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

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Compact Quantum Dots for Single-molecule Imaging
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Compact Quantum Dots for Single-molecule Imaging

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Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
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Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications

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科学分野:

  • 凝縮物質物理学
  • 量子材料科学
  • 高エネルギー物理シミュレーション

背景:

  • 量子相対論的な物質は 基本的なものですが 研究するのは難しいものです
  • グラフェンは 調節可能な電磁場により このような物質をシミュレートするための ユニークなプラットフォームを提供します

研究 の 目的:

  • グラフェン共振器における空間的および磁気的閉じ込めの相互作用を調査する.
  • 原子のようなシェル状態のランдауレベルへの移行を視覚化します.
  • 量子相対論的な現象を研究するための固体系の可能性を探求する.

主な方法:

  • 円形のグラフェン共振器の詳細なスペクトルマッピング
  • 外部電場と磁場を適用して閉じ込める.
  • 量子ホール状態とその構造的進化の観測.

主要な成果:

  • ランダウレベルに凝縮する原子のようなシェル状態の直接視覚化.
  • 圧縮-非圧縮量子ホール状態を示す"ウェディングケーキ"構造の観測.
  • 閉じ込められたシステム内の電子相互作用の効果の実証.

結論:

  • グラフェン共振器は,強固に閉じ込められた相対論的物質の実行可能なテーブルトッププロトタイプとして機能します.
  • 固体系の複雑な量子現象を 顕微鏡法で明らかにできます
  • これらの発見は 極限条件下での量子相対論的物質の理解に 新たな道を開きます