Follow TV Tropes

Following

Seeing Light in a New Light: Scientists Create Never-Before-Seen Form

Go To

rmctagg09 The Wanderer from Brooklyn, NY (USA) (Time Abyss) Relationship Status: I won't say I'm in love
The Wanderer
#1: Sep 25th 2013 at 12:35:15 PM

...of Matter

So basically, (Bear with me, I've never exactly taken a physics class before, so I might make some errors.) the article talks about a group of scientists managing to create a fifth form of matter by making photons (light particles) behave like molecules after being shot at extremely cooled rubidium ions. It's more or less best compared to a real life lightsaber.

Researchers began by pumped rubidium atoms into a vacuum chamber, then used lasers to cool the cloud of atoms to just a few degrees above absolute zero. Using extremely weak laser pulses, they then fired single photons into the cloud of atoms.

As the photons enter the cloud of cold atoms, Lukin said, its energy excites atoms along its path, causing the photon to slow dramatically. As the photon moves through the cloud, that energy is handed off from atom to atom, and eventually exits the cloud with the photon.

"When the photon exits the medium, its identity is preserved," Lukin said. "It's the same effect we see with refraction of light in a water glass. The light enters the water, it hands off part of its energy to the medium, and inside it exists as light and matter coupled together, but when it exits, it's still light. The process that takes place is the same it's just a bit more extreme — the light is slowed considerably, and a lot more energy is given away than during refraction." When Lukin and colleagues fired two photons into the cloud, they were surprised to see them exit together, as a single molecule.

The reason they form the never-before-seen molecules?

An effect called a Rydberg blockade, Lukin said, which states that when an atom is excited, nearby atoms cannot be excited to the same degree. In practice, the effect means that as two photons enter the atomic cloud, the first excites an atom, but must move forward before the second photon can excite nearby atoms.

Now, I wonder what applications besides those listed in the article what amounts to real life Hard Light could be used in.

edited 25th Sep '13 2:01:32 PM by rmctagg09

Eating a Vanilluxe will give you frostbite.
Demongodofchaos2 Face me now, Bitch! from Eldritch Nightmareland Since: Jul, 2010 Relationship Status: 700 wives and 300 concubines
Face me now, Bitch!
#2: Oct 3rd 2013 at 12:07:08 PM

"Hums Light Saber Sound".

Watch Symphogear
Ekuran Since: Feb, 2010 Relationship Status: watch?v=dQw4w9WgXcQ
#4: Oct 3rd 2013 at 12:20:23 PM

Science is awesome.

edited 3rd Oct '13 12:23:02 PM by Ekuran

Kostya from Everywhere Since: Apr, 2011 Relationship Status: [TOP SECRET]
#5: Oct 3rd 2013 at 1:06:54 PM

So if I understand this correctly Hard Light could actually be a thing someday? Wow.

Also the Pure Energy page might have to be rewritten a little if this becomes a real thing.

RadicalTaoist scratching at .8, just hopin' from the #GUniverse Since: Jan, 2001
BestOf FABRICATI DIEM, PVNC! from Finland Since: Oct, 2010 Relationship Status: Falling within your bell curve
FABRICATI DIEM, PVNC!
#7: Oct 3rd 2013 at 2:21:03 PM

[up]Gimmick tech and freaky materials are no match for a good bit of plastic in your product, kid.

Quod gratis asseritur, gratis negatur.
ohsointocats from The Sand Wastes Since: Oct, 2011 Relationship Status: Showing feelings of an almost human nature
#8: Oct 3rd 2013 at 2:39:21 PM

I thought there were already five states of matter.

Kostya from Everywhere Since: Apr, 2011 Relationship Status: [TOP SECRET]
#9: Oct 3rd 2013 at 2:41:49 PM

I've only heard of four. Solid, liquid, gas, and plasma. I think there's stuff like semi-solids but they're not really counted from what I can tell.

BestOf FABRICATI DIEM, PVNC! from Finland Since: Oct, 2010 Relationship Status: Falling within your bell curve
FABRICATI DIEM, PVNC!
#10: Oct 3rd 2013 at 2:50:09 PM

There's also something called a Bose-Einsteinean condensate. (If I got that wrong I won't be very embarrassed because I wrote it without checking.)

Quod gratis asseritur, gratis negatur.
Kostya from Everywhere Since: Apr, 2011 Relationship Status: [TOP SECRET]
#11: Oct 3rd 2013 at 2:54:28 PM

You're right. According to wikipedia the four I mentioned are the fundamental states of matter. There are also other states that seem to be either the main four with special properties or some kind of fusion of the main four.

ohsointocats from The Sand Wastes Since: Oct, 2011 Relationship Status: Showing feelings of an almost human nature
#12: Oct 3rd 2013 at 3:03:21 PM

Bose-Einstein condensate would be what you would get if you managed to cool something down to absolute zero. That's not actually something we've been able to do, but it's there. So that makes five.

Pykrete NOT THE BEES from Viridian Forest Since: Sep, 2009
NOT THE BEES
#13: Oct 3rd 2013 at 3:05:42 PM

There's also something called a Bose-Einsteinean condensate. (If I got that wrong I won't be very embarrassed because I wrote it without checking.)

Close enough, yeah. Quantum effects are usually chaotic and cancel each other out, but when you supercool a gas low enough, the particles all uniformly "condense" to their lowest state and you get fun macroscale quantum effects now that they're all doing the same thing.

[up] No. You generally have to get reasonably close to absolute zero to see it, but bosons' lowest quantum states are pretty accessible with some effort (all you have to do is make sure they don't have enough energy to hit the next one up). For instance, superfluid helium is essentially a condensate, and we made that before WWII. If you want to be pedantic and require an actual gas, that happened in 1995 at JILA.

edited 3rd Oct '13 3:14:17 PM by Pykrete

Ramidel (Before Time Began) Relationship Status: Above such petty unnecessities
#14: Oct 3rd 2013 at 3:34:39 PM

Is it a bad thing that I just imagined Bifrost (namely the various Marvel versions) as a possible application?

Because rainbow bridges are awesome.

I despise hypocrisy, unless of course it is my own.
Euodiachloris Since: Oct, 2010
#15: Oct 5th 2013 at 7:30:11 PM

Physicists: trolls who enjoy making chemists cry and break out the correction fluid. [lol]

Add Post

Total posts: 15
Top