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


October 19, 2013
Why Is There Something Instead of Nothing?
Natalie Wolchover, Quanta
It felt like the Apollo control room seconds before the moon landing. For the approximately 60 physicists crowded into a conference room at the Joint Institute for Nuclear Research in Dubna, Russia, on June 14, this was the... more ››