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関連する概念動画

Potential Due to a Magnetized Object01:24

Potential Due to a Magnetized Object

365
Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
The vector...
365
Divergence and Curl of Magnetic Field01:26

Divergence and Curl of Magnetic Field

3.2K
The magnetic field due to a volume current distribution given by the Biot–Savart Law can be expressed as follows:
3.2K
Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

3.7K
Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
3.7K
Magnetic Field due to Moving Charges01:23

Magnetic Field due to Moving Charges

9.3K
A stationary charge creates and interacts with the electric field, while a moving charge creates a magnetic field.
Consider a point charge moving with a constant velocity. Like the electric field, the magnetic field at any point is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance between the source point and the field point. However, unlike the electric field, the magnetic field is always perpendicular to the plane containing the line...
9.3K
Magnetic Field Of A Current Loop01:16

Magnetic Field Of A Current Loop

5.0K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
5.0K
Magnetic Vector Potential01:15

Magnetic Vector Potential

836
In electrostatics, the electric field can be written as the negative gradient of the potential. In magnetostatics, the zero divergence of the magnetic field ensures that the magnetic field can be expressed as the curl of a vector potential. This potential is known as the magnetic vector potential.
Consider an ideal solenoid with n turns per unit length and radius R. If I is the current through the solenoid, the magnetic field inside the solenoid is expressed as the product of vacuum...
836

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関連する実験動画

Updated: Sep 23, 2025

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
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An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

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遠距離量子磁石で発生する水力学を観察する

M K Joshi1, F Kranzl1,2, A Schuckert3,4

  • 1Institute for Quantum Optics and Quantum Information, Austrian Academy of Sciences, Technikerstraße 21a, 6020 Innsbruck, Austria.

Science (New York, N.Y.)
|May 13, 2022
PubMed
まとめ

研究者はイオンの量子ダイナミクスを研究し レヴィの飛行のような普遍的な水力ダイナミクスを発見しました これは不均衡の量子物質とその新興の古典的性質の洞察を明らかにします

さらに関連する動画

Scanning SQUID Study of Vortex Manipulation by Local Contact
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Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
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Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

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関連する実験動画

Last Updated: Sep 23, 2025

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

8.6K
Scanning SQUID Study of Vortex Manipulation by Local Contact
06:53

Scanning SQUID Study of Vortex Manipulation by Local Contact

Published on: February 1, 2017

6.9K
Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

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2.9K

科学分野:

  • 量子物理学
  • 凝縮物質物理学
  • 統計的メカニズム

背景:

  • 非均衡量子状態の普遍的性質を特定することは大きな課題です.
  • クラシック水力学は 相互作用する量子システムで普遍的に出現すると予測されています

研究 の 目的:

  • 量子ダイナミクスを実験的に探査し,水力ダイナミクスの普遍性を観察する.
  • 通常の拡散から異常な超拡散までの普遍性クラスの範囲を調査する.

主な方法:

  • 51個の個別に制御されたイオンを使って 長い距離で相互作用するスピンチェーンを作りました
  • 測定された時空相関関数は,無限の温度状態で解けます.

主要な成果:

  • レヴィの飛行 (異常な超拡散) を含む水力学的な普遍性クラスの家族を観察した.
  • 抽出された輸送係数,顕微鏡のシステムの特性をマクロスコープの水力動力学的行動と結びつける.

結論:

  • エンジニアリングされた量子システムは 非均衡の量子物質の普遍的な性質について 重要な洞察を提供できます
  • 相互作用する量子システムから クラシックな水力学の出現を示した.