New state of matter in one-dimensional quantum gas

By adding some magnetic flair to an exotic quantum experiment, physicists produced an ultra-stable one-dimensional quantum gas with never-before-seen "scar" states - a feature that could someday be useful for securing quantum information. As the story goes, the Greek mathematician and tinkerer Archimedes came across an invention while traveling through ancient Egypt that would later bear his name. It was a machine consisting of a screw housed inside a hollow tube that trapped and drew water upon rotation. Now, researchers led by Stanford University physicist Benjamin Lev have developed a quantum version of Archimedes' screw that, instead of water, hauls fragile collections of gas atoms to higher and higher energy states without collapsing. Their discovery is detailed in a paper published Jan. 14 in Science. "My expectation for our system was that the stability of the gas would only shift a little," said Lev, who is an associate professor of applied physics and of physics in the School of Humanities and Sciences at Stanford.