Laser cooling of antihydrogen atoms
On the front page of Nature: ALPHA publishes first laser-cooling of antihydrogen!
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Investigation of the fine structure of Antihydrogen
On February 19, 2020, ALPHA published the first investigation of the fine structure of Antihydrogen.
Lyman-Alpha Transition observed in Antihydrogen
The ALPHA collaboration has for the first time observed single-photon excitation of antihydrogen atoms from the ground (1S) state to the 2P state using 121nm pulsed laser light - the so-called lyman-alpha line of the Lyman series.
First 1S-2S Line Shape published in Nature
Our latest breakthrough, the first detailed study of one of the hyperfine components of the 1S-2S line in trapped antihydrogen has been published in Nature and is the most precise and most accurate measurement of antimatter to date.
Observation of the 1S-2S Transition in Trapped Antihydrogen published in Nature
Our latest breakthrough, the first observation of the 1S-2S transition in trapped antihydrogen has been published in Nature and is the first time a spectral line has been observed in antihydrogen.
ALPHA probes Antimatter Gravity
Physicists have long wondered if the gravitational interaction between antimatter and matter might be different than that between matter and itself. Do atoms made of antimatter, like antihydrogen, fall at a different rate to those made of matter, or might they even fall up – antigravity?
A new result from ALPHA - The first measurements of the Antihydrogen Spectrum
Once you've trapped antihydrogen what do you do? You measure it!
We report the first resonant quantum transitions in antihydrogen atoms.
Antihydrogen Atoms trapped for 1000s
In a paper published online at Nature Physics, ALPHA announces confinement of antihydrogen atoms for at least 1000s.