Time crystals: A new phase of matter - and a breakthrough for quantum computing?

Google researchers claim to have created four-dimensional 'time crystals. Time crystals are a new phase of matter that seems to evade the laws of physics. Just like ordinary crystals repeat themselves in space, time crystals repeat themselves in time. Time crystals could become tools to detect magnetic fields or be used to diagnose what's going on inside quantum computers

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[chuckdawit]

This was a really great video NOT explaining how they work.

[joaoletelier]

More impressive than the time crystals is how they managed to make a 7.5 minute long video explaining absolutely nothing.

[joelhenderson]

Boy that coin demo was unhelpful! Sometimes you should just explain the thing and not try dumbing it down.

[theronerdithas]

Maybe I'm a bit grumpy, but this might be one of the worst videos on any science topic I've ever seen.

[francoislamarre]

I feel like the explanation could have been much simpler. Very badly explained.

[Kmykzy]

4 million subs, 300k views, 5k likes.

Like time crystals you guys took the audience round and round in circles and arrived at the same point before the video started of not knowing what time crystals are. You even followed the laws of thermodynamics, no value was destroyed or added from this video.

Impressive work actually. 👏👏👏

[gdf_c]

Fantasizing about an effect you'd like to see isn't the same as actually inventing something.

"I invented the antigravity crystal. Imagine you toss a coin into the air. You would expect it to fall, but the antigravity coin doesn't. It could be useful for faster airplanes".

I mean, maybe there's more to it - if it's the case, though, this video is totally useless.

[WhatsTherapy]

i both did and did not watch this video, in a quantum sense

[VietnamEli]

This makes about as much sense as NFTs

[ericmaher]

My best thought experiments always happened with ice in a glass actually, but with more potent liquids than water.

[nairarunr]

Once upon a time, two scientists had nothing to do during lockdown. Hence to kill time, they forcefully invented "time crystals" by flipping some coins.

[ZeroSpawn]

Well I just lost 7.5 mins of my life. Please upload a video when you get a good explanation of what these crystals are and how they can be used.

[lorenh]

It's fascinating but if it's a newly discovered phase of matter it is physical so why are analogies the only thing we get to see? Show us the time crystal

[sashas]

There was a similar discovery concerning what they call supersolids which are said to be hyperdimensional crystals which repeatedly oscillate between a solid and liquid over time, claimed to be able to vibrate this way without losing energy.

[DGC]

3:54 "Shake it three times, you're playing with yourself again"

[rudrajitghosh]

Tending towards low energy state.... that's exactly what I tried to explain my boss.

[MThomasB]

Only a matter of time before the doctor arrives...
“Somewhere there’s danger, somewhere there’s injustice, somewhere else, the tea’s getting cold.”

[jamesattack]

So these have been created or what? is there a theoretical process for making them? Why do they have to be infinite when they are clearly finite across the spatial dimensions? Is their physical state the property that is cyclic? How long do the cycles last? I don't know anything about physics but this just sounds made up and I'm not even really sure what the breakthrough was. Perhaps it was just poorly explained, am I missing something?

[lexas]

What a waste of time. I didn't expect much and I was not disappointed. Of course they had to call it time crystals to make it sound mysterious and sexy. It has absolutely NOTHING to do with crystals. Time poop would be just as valid and more to the point.

[spot]

Something tells me Sabine Hossenfelder will have a field day with this.