this post was submitted on 12 Jun 2026
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Physics

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Scientist creates 'mini‑universe' to measure time without a clock (phys.org)
submitted 1 week ago by Innerworld@lemmy.world to c/physics@mander.xyz
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[–] threelonmusketeers@sh.itjust.works 6 points 1 week ago

How the mini-universe works

Barontini used a cloud of 24,000 ultracold atoms—just a few billionths of a degree above absolute zero—to create a hermetically sealed quantum system that mimics a simple "universe."

Okay, so they didn't create a new universe. They just sectioned off a portion of the universe we already have, and did experiments on it. Still neat, though.