Physicists observe a new quantum state in ultracold atoms
Researchers say ultracold atoms formed an orderly yet highly excited configuration that defies familiar organizing rules. The finding challenges existing quantum theories.
By Standard Topic. AI-generated from the reporting listed under Coverage. Published . Updated .
This story is no longer being updated. It reflects reporting up to .
What happened
Physicists froze atoms confined to a single line and observed them binding into clusters called Bethe strings, a quantum phenomenon predicted about 100 years ago. A newer report describes ultracold atoms forming a highly excited but orderly state called a fractional Fermi sea. The evidence for the first finding is still indirect.
Timeline
- Oct 16, 4:45 PM ET: Physicists reported that atoms confined to a single line can bind into clusters called Bethe strings, with a new experiment pointing to a mix of such clusters.
- Oct 18, 8:00 AM ET: Physicists reported discovering a new state of quantum matter called a fractional Fermi sea, in which ultracold atoms defy familiar organizational rules.
Coverage
- Physicists create a bizarre new quantum state called a fractional fermi sea (sciencedaily.com)
- Physicists froze a 'necklace' of atoms — and witnessed a quantum phenomenon predicted 100 years ago (Larissa G. Capella)
More from Science
- Citrini Research designs 211 proteins with Claude AI
- Researchers find two methods to break down PFAS chemicals
- International team measures early Universe helium with record precision
- British Academy launches report on universities' research funding future
- Researchers find previously unknown chicken immune cell population
- Daily blueberries linked to fewer depression symptoms in small study