Posted on 11/07/2012 5:25:07 PM PST by BenLurkin
Now physicists at the University of Vienna in Austria have "virtually intertwined" or entangled two particles spinning faster than ever in opposite directions. Entanglement occurs when two particles remain connected so that actions performed on one affect the other, despite the distance between them. (Einstein referred to this eerie connection as "spooky action at a distance.")
In the new study, Anton Fickler and his colleagues entangled two photons that had a high orbital angular momentum, a property that measures the twisting of a wave of light. In quantum physics, particles such as photons can behave as particles and waves.
Such entanglement experiments have been carried out for decades. In this case, though, the researchers did something a bit different. They created entangled photons and gave them lots of angular momentum, more than in any experiment before.
To create entangled photons, Fickler and his team sent a laser through a beam splitter, dividing the laser beam into two. Two photons were sent down separate optical fibers and their waves were twisted, and twisted, and twisted some more, ramping up their angular momentum imagine a wave shaped like a spiral, spinning faster and faster.
Eventually, there was enough angular momentum in the photons that their quantum numbers the units their momentum is measured in differed by a factor of 600, a higher value than any seen previously. The photons spinning rapidly in opposite directions, meanwhile, were still entangled.
(Excerpt) Read more at livescience.com ...
What does that mean?
I am not sure I understand it, but it sounds freaking cool. To be able to manipulate photons like that.
I read the headline as “Quantum Entitlement” and was wondering where I sign up to get mine.
I don’t know but quantum entanglement has interesting potential for things like computing and possibly long distance communications.
At least I think that's what they said in culinary school.
/johnny
lol...I want my free Faster-Than-Light Obama phone now!
Your left hand doesn’t know what your hand is doing but does exactly the same action.
The question: are you changing the properties of the photon by increasing its energy thereby interfering with or changing the experiment.
It almost sounds like a background noise issue that interferes with detection? Increasing the energy or “signal” improves detection. Much like amplification.
the only thing we really know for sure is there is a cat in a box somewhere that is either dead or alive. All else is just conjecture.
the only thing we really know for sure is there is a cat in a box somewhere that is either dead or alive. All else is just conjecture.
Until you look at it. Then it becomes a box of donuts. With sprinkles. Ummmmmmmmmm, donuts with sprinkles. Argggggggg.
My understanding is limited, in that particular area, since we barely covered it. I paid more attention to sauces, stocks, and breads during culinary school. ;)
/johnny
BTTT
Lol. Zen and the art of culinary sciences. :) Science being the key word here.
I imagine it means things like probabilistic position and momentum.
Oh, I see.
Like driving on the freeway.
“Until you look at it.”
You are quantumly correct. It would not have intertwined if they hadn’t observed it.
I think it simply relates to one of the sentences just above it:
“This shows that entanglement effects can be seen at high energies, meaning closer to the macroscopic world we all know and interact with.”
Therefore suggesting that theoretically at least (and far beyond our current capability) it should be possible to do something like this so that it would be visible to the naked eye.
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