A time crystal is a form of matter that shows continuous, repeating patterns over time, much like how atoms in a normal crystal repeat in space. Examples once existed in only complex, quantum matter, ...
The word “crystal” comes from the Greek “krystallos,” meaning clear ice. A crystal is defined as a solid material consisting of a three-dimensional periodic ordering of atoms, molecules or ions.
Every crystal's shape is a mirror of the internal arrangement of its molecules, but the molecules in photoswitchable crystals ...
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