World’s quietest gas lets physicists hear faint quantum effects

Berkeley CA (SPX) Aug 05, 2015

Physicists at the University of California, Berkeley, have cooled a gas to the quietest state ever achieved, hoping to detect faint quantum effects lost in the din of colder but noisier fluids.

While the ultracold gas’s temperature – a billionth of a degree above absolute zero – is twice as hot as the record cold, the gas has the lowest entropy ever measured. Entropy is a measure of disord —> Read More