Scientists have created the first visible time crystal -matter that repeats through time instead of space – revealing a phase of matter whose internal patterns repeat through time while remaining directly observable.
The name may sound like science fiction, yet the discovery shows that repeating motion in matter can now be watched directly instead of inferred indirectly.
Visible form of time crystal
Inside a thin glass cell, liquid crystal material produced shifting stripes that kept cycling through the same pattern while illuminated by steady light.
Tracking those repeating bands, Hanqing Zhao at the University of Colorado Boulder (CU Boulder) documented the motion as a visible form of a time crystal – a material whose internal pattern repeats in time rather than staying fixed in space…