Time crystals, a theoretical phase of matter proposed in 2012, can now be reliably created and measured, thanks to researchers at UC Berkeley. Above: a great primer on time crystals.
The discovery built on the work of several teams of researchers:
Time crystals repeat in time because they are kicked periodically, sort of like tapping Jell-O repeatedly to get it to jiggle, Yao said. The big breakthrough, he argues, is less that these particular crystals repeat in time than that they are the first of a large class of new materials that are intrinsically out of equilibrium, unable to settle down to the motionless equilibrium of, for example, a diamond or ruby.
"This is a new phase of matter, period, but it is also really cool because it is one of the first examples of non-equilibrium matter," Yao said. "For the last half-century, we have been exploring equilibrium matter, like metals and insulators. We are just now starting to explore a whole new landscape of non-equilibrium matter."
Maybe the next step is the development of these time crystals:
• Scientists unveil new form of matter: time crystals (UC Berkeley via EurekAlert)
