Scientists unveil new form of matter: Time crystals
> The idea was proposed by Frank Wilczek in 2012. His speculation was that a construct would have a group of particles that move and periodically return to their original state, perhaps moving in a circle, and form a time crystal. In order for this perpetual motion to work, the system must not radiate its rotational energy.<p>I thought perpetual motion violates the laws of thermodynamics. Does quantum physics cause the laws of thermodynamics to break down?