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Caltech physicists finally measure a quantum energy ladder predicted 40 years ago

Researchers have experimentally observed energy patterns that physicists have predicted for about 40 years.

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Researchers have experimentally observed energy patterns that physicists have predicted for about 40 years.

The short version

  • By arranging laser-trapped atoms into a quantum simulator, they recreated two different quantum tipping points and watched the atoms fall into the exact energy ratios predicted by theory.
  • The technique could now be used to explore mysterious quantum systems where scientists do not already know the answer.
  • When materials undergo major changes, such as water boiling or a magnet losing its magnetism, very different systems can sometimes start behaving according to the same mathematical rules.

What happened

"Physicists call this trait universality -- the messy, microscopic details wash out and only a few essential features survive," explains Jason Alicea, William K. Davis Professor of Theoretical Physics.

Why it matters

Physicists often describe this universal behavior using a mathematical framework known as conformal field theory.

Summary by Nerd News Network. Read the full article at ScienceDaily — Top Science via the links above and below.

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