Quantum a Crystals - What Are They?

Quantum crystal is a state which breaks something that is called a spontaneous time symmetry. It's a combination of floque systems and quantum glasses. When you combine these two elements, manyby the localization and flote systems, then you get what they call a quantentine crystal. The first thing i said refers to systems that are periodically driven externally. And so there are states that are labelled by qanten numbers that have to do with a frequency of the external drive and multiplues of it.