January 4, 2013

Quantum Gas Goes Below Absolute Zero

Zeeya Merali, Nature News


AP Photo

It may sound less likely than hell freezing over, but physicists have created an atomic gas with a sub-absolute-zero temperature for the first time1. Their technique opens the door to generating negative-Kelvin materials and new quantum devices, and it could even help to solve a cosmological mystery.

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TAGGED: Laser, Gas, Quantum Physics, Cosmology, Absolute Zero

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