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Author Topic: Testing “spooky action-at-a-distance” on the International Space Station  (Read 1725 times)

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Offline The Night Owl

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Testing “spooky action-at-a-distance” on the International Space Station
« on: July 08, 2008, 08:58:06 AM »
Testing “spooky action-at-a-distance” on the International Space Station
June 9th, 2008 | by KFC |



Entanglement is the strange and beautiful property of certain quantum particles to become so deeply linked that they share the same existence. According to quantum theory, that link should be maintained whatever the distance between the particles, whether the width of an atom or the diameter of the universe.

This led Einstein to claim that the instantaneous effects of entanglement would lead to “spooky action-at-a-distance” in violation of special relativity which prevents faster-than-light signals.

Nobody knows how the different predictions of relativity and quantum mechanics can be resolved. However, entanglement has been measured in numerous experiments over relatively short distances on Earth. The tests involve two entangled particles, photons say, being sent to distant experimenters who then perform measurements on them.

...

http://arxivblog.com/?p=460
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Offline The Night Owl

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Re: Testing “spooky action-at-a-distance” on the International Space Station
« Reply #1 on: July 08, 2008, 09:06:29 AM »
A related item...

Discovery may make ghost imaging a reality

By Michael Hoffman - Staff writer
Posted : Tuesday Jul 1, 2008 19:40:52 EDT
   
Three scientists believe they have discovered a method to make an image of an object without aiming a camera or sensor directly at it. And that could eventually allow Air Force satellites to photograph images on Earth through clouds, according to Yanhua Shih, a scientist at the University of Maryland, Baltimore County.

Scientists call it ghost imaging. The premise of this process, based on quantum mechanics theory, is that one image can be built by using a digital camera to collect light — photons — from a light source, using a light meter to collect photons bouncing off an object and then pairing them to develop a black and white silhouette of the object.

Ron Meyers and Keith Deacon — who work at the Army Research Laboratory with Shih — are the first to demonstrate ghost imaging of opaque objects in a recent experiment, partially funded by the Air Force, in which they photographed a toy soldier.

...

http://www.airforcetimes.com/news/2008/06/airforce_ghost_imagery_062908/
« Last Edit: July 08, 2008, 09:09:24 AM by The Night Owl »
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Offline PatriotGame

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Re: Testing “spooky action-at-a-distance” on the International Space Station
« Reply #2 on: July 08, 2008, 02:35:50 PM »
Big deal!

I have a secret decoder ring that does the same thing that I got form a special VRWC edition of Cracker Jacks ten years ago.
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Offline djones520

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Re: Testing “spooky action-at-a-distance” on the International Space Station
« Reply #3 on: July 08, 2008, 03:00:29 PM »
Big deal to me.  Being able to tell if there is a layer of sea fog below a thick shield of cirrus would be awesome.
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Offline ReardenSteel

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Re: Testing “spooky action-at-a-distance” on the International Space Station
« Reply #4 on: July 08, 2008, 04:13:29 PM »
From the Air Force Times link.
Quote
Defense manufacturer Lockheed Martin has shown interest in quantum entanglement, acquiring a U.S. patent in May to develop quantum radar that could defeat stealth aircraft and find camouflaged improvised explosive devices and mines, according to the patent.

I love reading about this kind of stuff. Always brings out my secret Trekie/Star Wars geek.  :-)

All quantum theory is "spooky" to me though, lol. My best friend is a physicist and I can barely understand the normal workings of his job and or projects.


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Offline The Night Owl

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Re: Testing “spooky action-at-a-distance” on the International Space Station
« Reply #5 on: July 08, 2008, 04:22:31 PM »
Quote from: ReardenSteel on July 08, 2008, 04:13:29 PM

All quantum theory is "spooky" to me though, lol. My best friend is a physicist and I can barely understand the normal workings of his job and or projects.


Yeah. I'm very interested in all things quantum, but it's difficult for an average person like me to seperate the hype from the science. Consider the following presentations...

http://www.youtube.com/watch?v=1iJG6qkeMxA

http://www.youtube.com/watch?v=Yn1LJIrbCvI

All very mystifying and exciting, but the reality may not be as mystifying or exciting as the videos suggests. We just don't know exactly what is going on at the quantum level yet.
« Last Edit: July 08, 2008, 04:34:56 PM by The Night Owl »
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Offline djones520

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Re: Testing “spooky action-at-a-distance” on the International Space Station
« Reply #6 on: July 08, 2008, 04:45:24 PM »
Quote from: ReardenSteel on July 08, 2008, 04:13:29 PM
From the Air Force Times link.
Quote
Defense manufacturer Lockheed Martin has shown interest in quantum entanglement, acquiring a U.S. patent in May to develop quantum radar that could defeat stealth aircraft and find camouflaged improvised explosive devices and mines, according to the patent.

I love reading about this kind of stuff. Always brings out my secret Trekie/Star Wars geek.  :-)

All quantum theory is "spooky" to me though, lol. My best friend is a physicist and I can barely understand the normal workings of his job and or projects.




Your avatar is Admiral Ackbar.  There is not secret to your geekdom.   :tongue:
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