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関連する概念動画

The de Broglie Wavelength02:32

The de Broglie Wavelength

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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...
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Molecular Spectroscopy: Absorption and Emission01:14

Molecular Spectroscopy: Absorption and Emission

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Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels.  Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.
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The Uncertainty Principle04:08

The Uncertainty Principle

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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...
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UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

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In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
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IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration01:16

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

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A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
According to Hooke's law, the vibrational frequency is directly proportional to...
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The Quantum-Mechanical Model of an Atom02:45

The Quantum-Mechanical Model of an Atom

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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.
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関連する実験動画

Updated: Oct 13, 2025

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
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分子分散のための量子力学二重スリート

Haowen Zhou1, William E Perreault1, Nandini Mukherjee1

  • 1Department of Chemistry, Stanford University, Stanford, CA 94305, USA.

Science (New York, N.Y.)
|November 18, 2021
PubMed
まとめ
この要約は機械生成です。

研究者は分子デウテリウムを用いた 量子力学的二重スリートインターフェロメーターを開発しました この実験により 波のような粒子の性質が確認され 分子衝突を制御するための 新たな道が開かれました

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An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
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High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
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関連する実験動画

Last Updated: Oct 13, 2025

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
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Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

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科学分野:

  • 量子力学について
  • 分子物理学
  • 化学物理学

背景:

  • 量子力学における 粒子-波の二元性を証明する 礎石です
  • 化学反応を制御するには 量子レベルで分子相互作用を理解することが重要です

研究 の 目的:

  • 分子デュテリウムを使って 量子力学二重スリートインターフェロメーターを 作る
  • 衝突実験で 分子の波の性質を証明する
  • 分子衝突を一貫して制御するための新しい方法を探求する.

主な方法:

  • 分子デウテリウム (D2) を,スターク誘発のアディアバティック・ラマン経路経由で二軸状態 (v=2,j=2) に振動刺激した.
  • D2 (v=2,j=2) からD2 (v=2,j'=0) への回転緩解を,基底状態のヘリウムとの冷たい衝突によって調査した.
  • D2の結合軸を2つのスライスとして操作した.

主要な成果:

  • 分子デュテリウムの波のような振る舞いを確認した
  • D2のバイアシアル状態がダブルスリットとして機能することを実証しました.
  • 結合軸の方向が単軸状態に切り離されたときに干渉が消えることが示された.

結論:

  • 分子デュテリウムの双軸状態は 量子力学インターフェローメーターの ダブルスリートとして 明確に作用します
  • この研究は,分子衝突における量子干渉の研究のための新しいプラットフォームを確立します.
  • この発見は,分子衝突の一貫した制御のための新しい可能性を開きます.