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Quantum Trickery: Testing Einstein's Strangest Theory
The New York Times ^ | December 27, 2005 | Dennis Overbye

Posted on 12/28/2005 1:42:38 PM PST by snarks_when_bored

The New York Times



December 27, 2005

Quantum Trickery: Testing Einstein's Strangest Theory

By DENNIS OVERBYE

Einstein said there would be days like this.

This fall scientists announced that they had put a half dozen beryllium atoms into a "cat state."

No, they were not sprawled along a sunny windowsill. To a physicist, a "cat state" is the condition of being two diametrically opposed conditions at once, like black and white, up and down, or dead and alive.

These atoms were each spinning clockwise and counterclockwise at the same time. Moreover, like miniature Rockettes they were all doing whatever it was they were doing together, in perfect synchrony. Should one of them realize, like the cartoon character who runs off a cliff and doesn't fall until he looks down, that it is in a metaphysically untenable situation and decide to spin only one way, the rest would instantly fall in line, whether they were across a test tube or across the galaxy.

The idea that measuring the properties of one particle could instantaneously change the properties of another one (or a whole bunch) far away is strange to say the least - almost as strange as the notion of particles spinning in two directions at once. The team that pulled off the beryllium feat, led by Dietrich Leibfried at the National Institute of Standards and Technology, in Boulder, Colo., hailed it as another step toward computers that would use quantum magic to perform calculations.

But ...

[snip]

(Excerpt) Read more at nytimes.com ...


TOPICS: Extended News; Miscellaneous; Philosophy
KEYWORDS: bohr; einstein; entanglement; eprparadox; heisenberg; physics; quantuminformation; quantummechanics; quantumphysics; schroedinger; science
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Some perspective on the NIST result noted in sourcery's thread from a few weeks ago:

NIST Physicists Coax Six Atoms Into Quantum 'Cat' State

1 posted on 12/28/2005 1:42:40 PM PST by snarks_when_bored
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To: RadioAstronomer; longshadow; grey_whiskers; headsonpikes; PatrickHenry; Iris7; sourcery

Ping


2 posted on 12/28/2005 1:43:14 PM PST by snarks_when_bored
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To: snarks_when_bored

Perfect communication device...........


3 posted on 12/28/2005 1:45:15 PM PST by Red Badger (And he will be a wild man; his hand will be against every man, and every man's hand against him)
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To: snarks_when_bored

Dead and alive is my cat's state.


4 posted on 12/28/2005 1:46:24 PM PST by mtbopfuyn (Legality does not dictate morality... Lavin)
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To: snarks_when_bored

 

5 posted on 12/28/2005 1:46:31 PM PST by snarks_when_bored
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To: snarks_when_bored

And "faster" than the speed of light........


6 posted on 12/28/2005 1:46:41 PM PST by Red Badger (And he will be a wild man; his hand will be against every man, and every man's hand against him)
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To: snarks_when_bored
The team that pulled off the beryllium feat....hailed it as another step toward computers that would use quantum magic to perform calculations.

Or cars that fly!

7 posted on 12/28/2005 1:47:00 PM PST by randog (What the....?!)
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To: Red Badger

No information transfer channel appears to be involved...unfortunately.


8 posted on 12/28/2005 1:48:15 PM PST by snarks_when_bored
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To: snarks_when_bored

Spooky action at a distance.


9 posted on 12/28/2005 1:49:58 PM PST by Restore
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To: snarks_when_bored

Another big WOW!
I love quantum mechanics – but then again, I never did believe in a classical “reality”.


10 posted on 12/28/2005 1:50:07 PM PST by R. Scott (Humanity i love you because when you're hard up you pawn your Intelligence to buy a drink.)
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To: snarks_when_bored

11 posted on 12/28/2005 1:51:10 PM PST by ShadowAce (Linux -- The Ultimate Windows Service Pack)
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To: snarks_when_bored

What did they have against kitty cats?


12 posted on 12/28/2005 1:51:13 PM PST by RightWhale (pas de lieu, Rhone que nous)
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To: snarks_when_bored

Wow... That made my head hurt.


13 posted on 12/28/2005 1:54:02 PM PST by nuffsenuff (Don't get stuck on Stupid - General Russ Honore Sept 21, 2005)
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To: snarks_when_bored

So has anyone confirmed yet that the cat is both dead and alive? I wonder what it would be like.


14 posted on 12/28/2005 1:54:09 PM PST by bkepley
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To: snarks_when_bored

Well, I'm not a physicist, but from what I've read about these experiments, I'm not particularly convinced. It seems like they are basing their conclusions on assumptions that certain aspects of the quantum theory are correct. Sure, if you assume that the equations of quantum mechanics are correct, then you are going to get experimental results that seem consistent with them.

It doesn't really prove anything that these guys are able to poke holes in Einstein's conjectures. Einstein did not have all of the pieces of the puzzle, either. What is embarrassing, though, is that the groupthink the experimental physicists are engaged in does not seem to allow room for them to devise experiments that might test their own theories. They are only concerned about testing Einstein's.


15 posted on 12/28/2005 1:54:14 PM PST by Brilliant
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To: RightWhale
It's all Schrödinger's fault...
16 posted on 12/28/2005 1:55:35 PM PST by snarks_when_bored
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To: bkepley

btt


17 posted on 12/28/2005 1:56:06 PM PST by marvlus
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To: snarks_when_bored
... the condition of being two diametrically opposed conditions at once ...

Quantum Kerry? For and Against! Brilliant yet Stupid!

18 posted on 12/28/2005 1:56:15 PM PST by TexGuy
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To: Red Badger

"And "faster" than the speed of light........"

It's exciting to think that someday our ancestors will indeed colonize the stars. It's a shame medical technology is behind Quantum physics technology so we could live longer and actually see it.


19 posted on 12/28/2005 1:58:32 PM PST by quant5
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To: snarks_when_bored

It's all Schrödinger's fault...

Sooooo, if a cat dies in a box and there's no one to see it,
it's still alive? Only liberals would go for something like
that.


20 posted on 12/28/2005 1:59:53 PM PST by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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