Using atoms at temperatures colder than deep space, Rice University physicists have delivered overwhelming proof for a 1970 theory that was largely scoffed at when it first appeared. In a paper available online in Science, Rice's team offers experimental proof of a universal quantum mechanism that causes trios of particles to appear and reappear at higher energy levels in an infinite progression. The triplets, or trimers, form in special cases where pairs cannot. ...> Full Article
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