“EXOTIC STRUCTURES known as “space–time crystals” could soon become reality, thanks to research carried out by a collaboration of physicists in the US and China. The researchers, developing an idea put forward by theoretical physicist Frank Wilczek, of the Massachusetts Institute of Technology in the US, have shown how a crystal made of trapped ions could rotate persistently, even when in its lowest energy state, enabling it to break temporal as well as spatial symmetry.”
https://lnkd.in/efBJSDx