An expanding, ring-shaped cloud of atoms shares several striking features with the early universe. (Credit: E. Edwards/JQI)
An expanding cloud of atoms could offer insight into unanswered cosmological questions. Researchers playing with a cloud of ultracold atoms uncovered behavior that bears a striking resemblance to the universe in microcosm. Their work, which forges new connections between atomic physics and the sudden expansion of the early universe, will be published in Physical Review X and highlighted by Physics.8
“From the atomic physics perspective, the experiment is beautifully described by existing theory,” says Stephen Eckel, an atomic physicist at the National Institute of Standards and Technology (NIST). “But even more striking is how that theory connects with cosmology.”
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