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FWIW, and IANAP, a time crystal is a structure that causes things to apparently reverse their structure back and forth without additional energy. This is simila
by fnordpiglet 3y ago
FWIW, and IANAP, a time crystal is a structure that causes things to apparently reverse their structure back and forth without additional energy. This is similar to a spatial crystal in that the physical configuration repeats in space, except the configuration repeats in time without additional energy.
A time mirror causes a configuration to reverse in a way that’s a reflection of the original. Someone in a parallel thread gives examples of this.
They’re not the same thing.
IMO time crystals are more amazing.
- JoBrad 3y agoAlso NAP, but how is a time crystal different than the metamaterial used for a time mirror, wouldn’t a reversed light beam be reversed again, when it is reflected?
- fnordpiglet 3y agoThe time mirror applies energy to create the transformation. A time crystal requires no energy but you still see perpetual motion (not violating thermodynamics fwiw).
- wholinator2 3y agoQuantum physics does lots of fuzzy things that look like they'd have to violate thermodynamics, but "really don't" due to uncertainty mainly.
- fnordpiglet 3y agoIndeed all time crystals created to date leverage quantum effects to work.