Physicists say they used Google’s quantum computer to demo a time crystal, which forever cycles between states without consuming energy, for the first time (Natalie Wolchover/Quanta Magazine)

Natalie Wolchover / Quanta Magazine:
Physicists say they used Google’s quantum computer to demo a time crystal, which forever cycles between states without consuming energy, for the first time  —  Like a perpetual motion machine, a time crystal forever cycles between states without consuming energy.