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

Atomic Structure01:33

Atomic Structure

All matter is composed of atoms, the smallest individual units of elements. Each atom is made up of three subatomic particles: protons, neutrons, and electrons. Together, these three particles account for the mass and the charge of an atom.The History of Atomic TheoryThe first person to propose that everything on Earth is made up of tiny particles was the Greek philosopher Democritus, around 450 B.C. He used the term atomos, Greek for “indivisible,” from which the modern term “atom” is derived.
Radioactivity and Nuclear Equations03:18

Radioactivity and Nuclear Equations

Nuclear chemistry is the study of reactions that involve changes in nuclear structure. The nucleus of an atom is composed of protons and, except for hydrogen, neutrons. The number of protons in the nucleus is called the atomic number (Z) of the element, and the sum of the number of protons and the number of neutrons is the mass number (A). Atoms with the same atomic number but different mass numbers are isotopes of the same element.
A nuclide of an element has a specific number of protons and...
Types of Radioactivity03:23

Types of Radioactivity

The most common types of radioactivity are α decay, β decay, γ decay, neutron emission, and electron capture.
Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:
Nuclear Stability03:18

Nuclear Stability

Protons and neutrons, collectively called nucleons, are packed together tightly in a nucleus. With a radius of about 10−15 meters, a nucleus is quite small compared to the radius of the entire atom, which is about 10−10 meters. Nuclei are extremely dense compared to bulk matter, averaging 1.8 × 1014 grams per cubic centimeter. If the earth’s density were equal to the average nuclear density, the earth’s radius would be only about 200 meters.
To hold positively charged protons together in the...
Nuclear Transmutation03:20

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed protons being...
Atomic Structure01:17

Atomic Structure

The Greek philosopher Democritus proposed that everything on Earth is made up of tiny particles called atomos, Greek for "indivisible," from which the modern term "atom" is derived. In the 19th century, John Dalton proposed the atomic theory that is still largely correct today. He put forth five postulates to explain how atoms made up the world around us. (1) All matter is composed of infinitely small particles or atoms. (2) All atoms of a given element are identical to one another and (3) are...

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

Strong Purcell Effect on a Neutral Atom Trapped in an Open Fiber Cavity.

Physical review letters·2018
Same author

Fast Nondestructive Parallel Readout of Neutral Atom Registers in Optical Potentials.

Physical review letters·2017
Same author

Revealing Quantum Statistics with a Pair of Distant Atoms.

Physical review letters·2017
Same author

Maternal uniparental disomy of chromosome 16 [upd(16)mat]: clinical features are rather caused by (hidden) trisomy 16 mosaicism than by upd(16)mat itself.

Clinical genetics·2016
Same author

4D CT angiography more closely defines intracranial thrombus burden than single-phase CT angiography.

AJNR. American journal of neuroradiology·2013
Same author

Switching photochromic molecules adsorbed on optical microfibres.

Optics express·2012
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
関連記事をすべて見る

関連する実験動画

Updated: Jun 24, 2026

Single-Molecule Imaging of Nuclear Transport
12:13

Single-Molecule Imaging of Nuclear Transport

Published on: June 10, 2010

単一の原子の決定的配送.

S Kuhr1, W Alt, D Schrader

  • 1Institut für Angewandte Physik, Universität Bonn, Wegelerstrasse 8, D-53115 Bonn, Germany. kuhr@iap.uni-bonn.de

Science (New York, N.Y.)
|June 16, 2001
PubMed
まとめ
この要約は機械生成です。

冷たいセシウム原子を使って,決定的な単原子源を作成しました. この技術は,高度なアプリケーションのための正確な原子輸送と制御された放出を可能にします.

さらに関連する動画

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Atomically Traceable Nanostructure Fabrication
12:35

Atomically Traceable Nanostructure Fabrication

Published on: July 17, 2015

関連する実験動画

Last Updated: Jun 24, 2026

Single-Molecule Imaging of Nuclear Transport
12:13

Single-Molecule Imaging of Nuclear Transport

Published on: June 10, 2010

Compact Quantum Dots for Single-molecule Imaging
17:14

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Atomically Traceable Nanostructure Fabrication
12:35

Atomically Traceable Nanostructure Fabrication

Published on: July 17, 2015

科学分野:

  • 原子物理学 原子物理学とは
  • 量子光学とは,量子光学である.
  • 精度の高い測定法です.

背景:

  • 単一の原子を生成し,操作することは,量子技術にとって極めて重要です.
  • 既存の方法は,しばしば精度や決定的な制御が欠けている.
  • セシウムの原子は,レーザー冷却とトラッピング実験に適しています.

研究 の 目的:

  • 単一の原子の決定的な源を証明する.
  • 個々の原子の正確な空間制御と輸送を達成するために.
  • 単一の原子の制御された放出を可能にするため,さらなるアプリケーションのために.

主な方法:

  • 冷たいセシウム原子を磁気光学トラップから静止波二極トラップにロードする.
  • 静止波の制御された運動を用いて単一の原子をアディアバティックに輸送する.
  • 捕まった原子を直接光検出で観測する.
  • トラッピングフィールドを加速して,原子を自由飛行に放出する.

主要な成果:

  • 単一のセシウム原子を提供する決定的源の実現.
  • サブマイクロメートルの精度で,原子をセンチメートルの距離まで運ぶ.
  • 光による移転原子の直接観測.
  • 明確に定義された速度で単一の原子を放出する.

結論:

  • 開発された方法は,単一の原子を生成し,操作するための堅牢で正確な方法を提供します.
  • この決定的単原子源は,量子情報処理と原子光学の重要な進歩である.
  • 原子の位置と速度を正確に制御する能力は,原子ベースの量子装置のための新しい道を開く.