This Exotic State of Light Acts Like a ‘Liquid’

by Moin Uddin Ahmed Tipu

Recently, researchers found that under the right conditions, light can behave like a liquid that flows in unison. That’s right — liquid light.
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Light has been a favorite subject of study since pretty much forever and it still has more amazing hidden properties waiting to be discovered. Recently researchers found that under the right conditions, light can behave like a liquid with particles that flow in unison. That’s right—liquid light. Well, that’s not quite right. “Liquid” is a useful analogy…but it implies the light is in a liquid state, when really it’s in a more exotic state of matter, namely a Bose-Einstein condensate, or BEC.

Sometimes called the 5th state of matter, after solids, liquids, gasses, and plasma, a BEC is created when a group of particles acts as one giant superparticle. This can be done using entire atoms like rubidium and potassium cooled to near absolute zero.

Like photons, atoms behave like both waves and particles, and as they cool to extreme temperatures they lose momentum and their wavelengths blur together. Pioneering Indian physicist Satyendra Nath Bose and Albert Einstein predicted they could exist nearly a century ago. Because they require such low temperatures, Einstein thought it would be impossible to actually observe one. Turns out the impossible became possible in 1995, when the first Bose-Einstein condensate was created using roughly 2,000 rubidium atoms. A different technique for creating Bose-Einstein condensates out of light was discovered in 2010, and interestingly, it involves much more reasonable temperatures. When cooled, photons have a tendency to vanish into the walls of whatever is containing them.

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34 comments

Sandip Gupta January 19, 2022 - 8:02 PM

First

Mona Lisa January 19, 2022 - 8:02 PM

Wow

ymaysernameuay January 19, 2022 - 8:02 PM

second

Madara Uchiha January 19, 2022 - 8:03 PM

Second😂

Abhimanyu Negi January 19, 2022 - 8:03 PM

wow

Victor Robles January 19, 2022 - 8:05 PM

everybody gangsta until a gas acts like light

Yephom Upabit Music City January 19, 2022 - 8:05 PM

Interesting Light Facts

TheMagnificentGman January 19, 2022 - 8:07 PM

Can't wait to make the world's first light smoothie

Shreeram January 19, 2022 - 8:07 PM

Then what about wave particle duality?

Mike Kinseth January 19, 2022 - 8:07 PM

The cold lab on the ISS is something I'd like to learn more about. This is very cool info. Thanks

Entropy January 19, 2022 - 8:09 PM

A miCROmeter is a device that measures very small lengths. A micron is a millionth part of a meter. I believe that MIcrometer (with the stress on the i) is a synonym of micron, but not pronounced the way you pronounced it.

Lars Hansen January 19, 2022 - 8:11 PM

Basic theory of kommunikation you can only communicate with one Voice at a time, unless it's music which is the medium. What am I kindly indicating about this presentation?

XMckingwillX January 19, 2022 - 8:15 PM

So if this is like liquid light, Hard Light Next??

Hood January 19, 2022 - 8:17 PM

the link for 'liquid glass' is the wrong link

Aum Trivedi January 19, 2022 - 8:17 PM

Click bait title lmao nonsense unsubscribing be accurate atleast while giving titles

Ethan's Bluefox3 Studios, Creative Ideas January 19, 2022 - 8:20 PM

the experiment is flawed due to the added ingredients that your scientists added. hello

Naps 187 January 19, 2022 - 8:24 PM

Misty light

Mark M January 19, 2022 - 8:31 PM

That’s neat

KMTD’Lo January 19, 2022 - 8:33 PM

The PlayStation 3 background screen lol

DUNIA FLIGHT LUTHFI RAMADHAN January 19, 2022 - 8:38 PM

Listen the videos

aprilialover125 January 19, 2022 - 8:43 PM

Very nice but I require further explaining and description of what we're seeing on this here screen. That graph/pattern made little sense unless you already know what you're looking at

Lior Shoval January 19, 2022 - 8:47 PM

For the duration of the entire video I had a stressful feeling because of the music. Please don't do that. Instead of learning something, I was stressed and not in the state of mind to actually absorb what was said.

4G63 Turbo January 19, 2022 - 8:50 PM

Next there'll be Hard Light shields…

Debunk This January 19, 2022 - 9:00 PM

Photons are bosons this is not new.

Tauvik Rajawali Chanel January 19, 2022 - 9:14 PM

Very nice 👌

travin January 19, 2022 - 9:16 PM

1:36 what you're describing is an experimental version of natural conditions inside of an event horizon. the condensate occurs at higher temperatures due to the immense pressures. That and light is contained by gravity, the singularity's escape velocity.

I expect somewhere within an event horizon, much like the photon sphere outside, there's a BEC shell of light. There could also exist several shells corresponding to the photon energy levels, roughly corresponding to what we see with electrons surrounding a nucleus, and matter stacking/distribution that occurs in gravitational fields based upon mass.

Truth is Nothingness January 19, 2022 - 9:17 PM

🙏🕉🙏

Dr Stone January 19, 2022 - 9:42 PM

Does this light have mass

Dr Stone January 19, 2022 - 9:43 PM

Moving at light speed might be possible

Sizano Green January 19, 2022 - 9:50 PM

But how does it TASTE ?

korokokoro January 19, 2022 - 10:08 PM

What does temperature mean in the context of photons? What is slowed down there when "cooling"?

Omnifarious January 19, 2022 - 10:11 PM

How can you 'cool' light? All of this makes no sense, and it sounds like shorthand simplifications researchers are using to make their work sound really interesting. I'm sure it is really interesting, even if the explanation for what's actually going on is far more complicated.

Epic Benjo January 19, 2022 - 10:19 PM

Why does the audio have a slight reverb?

3DSergio January 19, 2022 - 10:19 PM

What about using this state of matter to store solar energy ??