Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Principle of Linear Impulse and Momentum for a System of Particles01:21

Principle of Linear Impulse and Momentum for a System of Particles

558
In the context of a system of particles moving relative to an inertial frame of reference, the equation of motion is a crucial tool for understanding the dynamics of the system. This equation, which accounts for external forces acting on each particle, plays a fundamental role in describing the system's behavior.
Notably, internal forces between particles, occurring in equal and opposite collinear pairs, cancel out and are not part of the equation of motion. This exclusion simplifies the...
558
Conservation of Momentum: Introduction01:16

Conservation of Momentum: Introduction

16.7K
The total momentum of a system consisting of N interacting objects is constant in time or is conserved. A system must meet two requirements for its momentum to be conserved:
16.7K
Conservation of Linear Momentum for a System of Particles01:28

Conservation of Linear Momentum for a System of Particles

506
In the dynamic realm of billiards, a fascinating interplay of forces governs the motion of cue balls and stationary balls. When the cue ball collides with a stationary ball, linear momentum is exchanged. The cue ball imparts a fraction of its linear momentum to the stationary ball, causing the cue ball to decelerate while initiating the motion of the stationary ball.
The impulsive force at play during this interaction is of extremely short duration, rendering its impulse negligible. When...
506
Angular Momentum about an Arbitrary Axis01:11

Angular Momentum about an Arbitrary Axis

419
Imagine a rigid body with a mass denoted as 'm', which has its center of mass at point G and is rotating around an inertial reference frame. The angular momentum at an arbitrary point P can be calculated by taking the cross product of the position vector and linear momentum vector for each individual mass element.
The velocity of a mass element comprises its translational velocity and the relative velocity instigated by the body's rotation. Substituting the velocity equation into...
419
Principle of Angular Impulse and Momentum: Problem Solving01:19

Principle of Angular Impulse and Momentum: Problem Solving

450
Consider a ball of mass m, attached to a massless rod of known length, subjected to a time-dependent torque. If the initial velocity of the mass is known, then the final velocity of the mass for time t can be determined using the principle of angular impulse and momentum.
Initially, a free-body diagram of the system is drawn to illustrate all the forces acting upon the system, providing a crucial understanding of the dynamics at play. Then, the principle of angular impulse and momentum is...
450
Angular Momentum: Single Particle01:10

Angular Momentum: Single Particle

7.6K
Angular momentum is directed perpendicular to the plane of the rotation, and its magnitude depends on the choice of the origin. The perpendicular vector joining the linear momentum vector of an object to the origin is called the “lever arm.” If the lever arm and linear momentum are collinear, then the magnitude of the angular momentum is zero. Therefore, in this case, the object rotates about the origin such that it lies on the rim of the circumference defined by the lever arm...
7.6K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Lithopedion in a 74-year-old woman: a rare sequela of undiagnosed abdominal pregnancy - case report.

Annals of medicine and surgery (2012)·2026
Same author

Geometric and nonequilibrium criticality in run-and-tumble particles with competing motility and attraction.

Physical review. E·2025
Same author

Percolation of systems having hyperuniformity or giant number fluctuations.

Physical review. E·2025
Same author

Site-percolation transition of run-and-tumble particles.

Soft matter·2024
Same author

Hyperuniformity in Ashkin-Teller model.

Journal of physics. Condensed matter : an Institute of Physics journal·2024
Same author

Evidence of a Hardening in the Cosmic Ray Proton Spectrum at around 166 TeV Observed by the GRAPES-3 Experiment.

Physical review letters·2024

関連する実験動画

Updated: Jan 8, 2026

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

8.9K

古典系における位置運動量不確かさ

Dipesh K Singh1, P K Mohanty1

  • 1Indian Institute of Science Education and Research Kolkata, Department of Physical Sciences, Mohanpur 741246, India.

Physical review. E
|December 23, 2025
PubMed
まとめ
この要約は機械生成です。

角運動量を保存する新しい熱浴を開発し、粒子位置と運動量の不確かさの最小値を導き出した。この下限は平均角運動量に直接関連しており、量子力学に新たな洞察を提供する。

キーワード:
熱浴角運動量不確かさの限界位置運動量不確かさ古典力学統計力学量子力学

さらに関連する動画

Experimental Methods to Study Human Postural Control
08:12

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

10.0K
Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
06:21

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings

Published on: July 26, 2022

3.0K

関連する実験動画

Last Updated: Jan 8, 2026

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

8.9K
Experimental Methods to Study Human Postural Control
08:12

Experimental Methods to Study Human Postural Control

Published on: September 11, 2019

10.0K
Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings
06:21

Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings

Published on: July 26, 2022

3.0K

科学分野:

  • 統計力学
  • 量子力学
  • 古典力学

背景:

  • 統計力学において、熱浴中の系の振る舞いを理解することは非常に重要である。
  • 系の特性を定義する上で角運動量の役割は、さらなる調査が必要である。
  • 既存の熱浴はしばしばゼロの平均角運動量をもたらし、特定の応用を制限する。

研究 の 目的:

  • 系の角運動量を保存または制御できる熱浴を設計すること。
  • ゼロでない平均角運動量が粒子の不確かさに与える影響を調査すること。
  • 角運動量に関連する位置運動量不確かさの基本的な下限を確立すること。

主な方法:

  • 特殊な熱浴の開発。
  • この熱浴内での古典粒子の理論的解析。
  • 位置運動量不確かさ関係の導出。

主要な成果:

  • 設計された熱浴は、定常状態でボルツマンエネルギー分布を維持する。
  • この熱浴中の粒子は、厳密に正の下限を持つ位置運動量不確かさを示す。
  • この下限は、平均角運動量の絶対値に比例する。
  • 無次元定数「c」はこの比例関係を特徴づけ、普遍的に1に制限される。
  • 中心ポテンシャル中の粒子では、cは正確に1/2に等しい。

結論:

  • この研究は、統計力学および量子力学に影響を与える新しい熱浴を紹介する。
  • 角運動量と基本的な粒子不確かさとの直接的な関係が確立される。
  • この発見は、保存または制御された角運動量を持つ系のための新しい理論的枠組みを示唆する。