Explaining Time Crystals: Matter, Mass & 4D

[Quark Effect]

Can someone simply explain to me what are the time crystals? What are they built from (matter, do they have mass)? I cannot find a clear explanation of them. I just know that ordinary crystals are 3d, time crystals - 4d.

 

[PeterDonis]

Can someone simply explain to me what are the time crystals?

I have no idea what "time crystals" are. Please give a reference.

 

[Quark Effect]

I have no idea what "time crystals" are. Please give a reference.

https://physicsworld.com/a/time-cry...KuujWrEmcscwOUrVyi491gtNTLGzkplq6m04LPoLrxKck

 

[Lord Crc]

There are some presentations over at Pirsa about time crystals, maybe they are helpful

http://pirsa.org/13020121

http://pirsa.org/17120006

 

[phinds]

and there's always wikipedia

https://en.wikipedia.org/wiki/Time_crystal

 

[Quark Effect]

There are some presentations over at Pirsa about time crystals, maybe they are helpful

http://pirsa.org/13020121

http://pirsa.org/17120006

Thank you, this was really helpful!

and there's always wikipedia

https://en.wikipedia.org/wiki/Time_crystal

I've been trying to grasp the info Wikipedia is providing, unfortunately, couldn't entirely understand the concept of time crystals. But thanks anyway

 

[handalf]

I saw that title couple days ago. And i started research what they are. I have found a paper in "Nature". That was helpfull. If you find your answer we can disguss. So i can learn anything. That topic is interesting

 

[artis]

@Quark Effect , interesting topic, from what I read I think the idea is that in an ordinary crystal you have a symmetry but it is fixed in time, watching after some time you still see the same symmetry and particles haven't changed their position, in a time crystal that is made of say 2 particles, they both oscillate, the oscillations have a time period much like any oscillation , so let's say you observe the particle being at it's highest point , then it falls down and goes up again, if you measure the time between up and down you can then come back any time in the future and predict where the particle will, be either up or down. you just have to count the intervals.

I guess this might be another way to make a precise "atomic" clock

 

[f95toli]

There is a good article about time crystals in the latest issue of Physics World. It might be a good place to start.

https://physicsworld.com/a/time-crystals-enter-the-real-world-of-condensed-matter/