Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Subatomic Particles03:37

Subatomic Particles

92.9K
Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom.
92.9K
Hess's Law03:40

Hess's Law

44.1K
There are two ways to determine the amount of heat involved in a chemical change: measure it experimentally, or calculate it from other experimentally determined enthalpy changes. Some reactions are difficult, if not impossible, to investigate and make accurate measurements for experimentally. And even when a reaction is not hard to perform or measure, it is convenient to be able to determine the heat involved in a reaction without having to perform an experiment.
44.1K
Nuclear Fusion02:45

Nuclear Fusion

33.2K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
33.2K
Nuclear Transmutation03:20

Nuclear Transmutation

12.9K
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...
12.9K
Atomic Nuclei: Nuclear Magnetic Moment00:59

Atomic Nuclei: Nuclear Magnetic Moment

3.0K
All atomic nuclei are positively charged. When they have a nonzero spin, they behave like rotating charges. As a consequence of their charge and spin, these nuclei generate a magnetic field (B). This, in turn, gives rise to a magnetic moment (μ), which is randomly oriented in the absence of an external magnetic field. When an external magnetic field (B0) is applied, the magnetic moment vectors can align with the field or against it in 2 + 1 orientations. A hydrogen nucleus, which is just a...
3.0K
Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

2.0K
The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
2.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Design and operation of APEX-LD: A compact levitated dipole for a positron-electron experiment.

The Review of scientific instruments·2026
Same author

Injection, confinement, and diagnosis of electrons and positrons in a permanent magnet dipole trap.

The European physical journal. D, Atomic, molecular, and optical physics·2024
Same author

Injection and confinement of positron bunches in a magnetic dipole trap.

Physical review. E·2024
Same author

Slow Decay Processes of Electrostatically Trapped Rydberg NO Molecules.

Physical review letters·2020
Same author

Excitation and characterization of long-lived hydrogenic Rydberg states of nitric oxide.

The Journal of chemical physics·2020
Same author

Confinement of High- and Low-Field-Seeking Rydberg Atoms Using Time-Varying Inhomogeneous Electric Fields.

Physical review letters·2019
Same journal

Six ways to put the public at the heart of science and policy.

Nature·2026
Same journal

The complex truth about trust in science.

Nature·2026
Same journal

Have people stopped trusting science? The data tell a surprising story.

Nature·2026
Same journal

How FAIR data are helping to build trust in science.

Nature·2026
Same journal

Scientists should recognize their own political biases to build public trust.

Nature·2026
Same journal

Harmonizing standards and resources for the medical genome.

Nature·2026
See all related articles

Related Experiment Video

Updated: May 2, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.1K

Trapped antihydrogen.

G B Andresen1, M D Ashkezari, M Baquero-Ruiz

  • 1Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark.

Nature
|November 19, 2010
PubMed
Summary
This summary is machine-generated.

Scientists have successfully trapped antihydrogen atoms, a crucial step for precision tests of fundamental symmetries and antimatter gravity. This breakthrough allows for detailed spectroscopic studies of anti-atoms, similar to those performed on hydrogen.

More Related Videos

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

15.9K
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

8.5K

Related Experiment Videos

Last Updated: May 2, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.1K
Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps
11:45

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

Published on: August 17, 2017

15.9K
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

8.5K

Area of Science:

  • Atomic physics
  • Antimatter research
  • Fundamental symmetries

Background:

  • Antimatter, including antihydrogen (an antiproton and positron bound state), has been produced but not confined.
  • Precision tests of the Charge Conjugation/Parity/Time reversal (CPT) theorem require spectroscopic examination of antihydrogen.
  • Understanding antimatter's gravitational behavior is a key area of research.

Purpose of the Study:

  • To demonstrate the trapping of antihydrogen atoms.
  • To enable precision measurements on anti-atoms.
  • To facilitate model-independent tests of fundamental symmetries.

Main Methods:

  • Production of antihydrogen from antiprotons and positrons at CERN.
  • Utilizing a magnetic trap to confine antihydrogen atoms.
  • Observing controlled release of trapped antihydrogen via annihilation events.

Main Results:

  • Successfully trapped antihydrogen atoms.
  • Observed 38 annihilation events consistent with controlled release from magnetic trap.
  • Established a method for future precision spectroscopy of antihydrogen.

Conclusions:

  • The trapping of antihydrogen is now experimentally demonstrated.
  • This opens avenues for precision measurements on anti-atoms.
  • Future experiments can employ techniques developed for hydrogen to study antihydrogen.