According to foreign media reports, the extreme imbalance between matter and antimatter is one of the most puzzling puzzles in the universe. They were all generated during the big bang, but the dominating things now are ordinary ones, of which the reason is unknown to us. The obvious way to solve this puzzle is to look at the antimatter itself. If scientists can find something different about antimatter behavior, it may be possible to find clues to explain this extreme imbalance.
To do this, a team of researchers decided to test whether hydrogen and antihydrogen atoms have the same spectrum - absorbing and releasing the same wavelength of light. For the first time, they performed laser spectroscopy on an anti-hydrogen atom, but the results obtained were surprisingly similar to those of conventional hydrogen atoms.
Art imagination: isolated anti-hydrogen atoms. After wandering for some time in the "trap," anti-hydrogen atoms are released and bombarded with a laser to produce a signal that can be traced by nearby detectors.
Capture antimatter
Antimatter has the opposite charge of the ordinary substance. An ordinary hydrogen atom consists of a proton (positive charge) and a much smaller electron (negative charge), whereas an antihydrogen atom consists of an antiproton (negative charge) and an anti-electron (also known as a positron, positively charged) composition.
When substances collide with antimatter, they annihilate, leaving only high-energy protons, which makes it harder for scientists to study antimatter in the lab. The air in the laboratory, the human and laboratory instruments are made of ordinary substances, as long as there are a few wandering atoms, will make your anti-atoms disappear in an instant disappeared. Given the extremely expensive cost of producing antimatter, this is certainly not satisfactory. As a result, the researchers came up with a clever way: isolate the antimatter so that it can not impact anything else. Using the electric field, researchers isolated the antimatter in an instrument called "ALPHA-2" for about 10 minutes.
ALPHA is an acronym for Antihydrogen Laser Physics Apparatus that gives researchers a glimpse of the anti-particle nature. During the study, antimatter was also frozen to 0.5 Kelvin. Such cooling is necessary to prevent a single anti-atom from moving too fast to escape the "trap."
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