January 4, 2013
Quantum Gas Goes Below Absolute Zero
Zeeya Merali, Nature News
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.
TAGGED: laser, gas, quantum physics, cosmology, absolute zero