Quantum Gas Temperature Goes Below Absolute Zero

Energy distribution of atoms in a thermal state. Positive absolute temperatures above, in blue; negative absolute temperatures below, in red. Credit: LMU/MPQ Munich

Physicists have been able to create an atomic gas that can attain a temperature below absolute zero, -273.15˚C. They were able to create this gas using negative-Kelvin materials and new quantum devices.

Read more @ SciTechDaily

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