Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

Surprise Link Between Weird Quantum Phenomena

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » Topic Forums » Science Donate to DU
 
n2doc Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 03:11 PM
Original message
Surprise Link Between Weird Quantum Phenomena
Heisenberg Uncertainty Principle Sets Limits on Einstein's 'Spooky Action at a Distance'

ScienceDaily (Nov. 18, 2010) — Researchers have uncovered a fundamental link between the two defining properties of quantum physics. The result is being heralded as a dramatic breakthrough in our basic understanding of quantum mechanics and provides new clues to researchers seeking to understand the foundations of quantum theory. The result addresses the question of why quantum behaviour is as weird as it is -- but no weirder.

Stephanie Wehner of Singapore's Centre for Quantum Technologies and the National University of Singapore and Jonathan Oppenheim of the United Kingdom's University of Cambridge published their work in the latest edition of the journal Science.

The strange behaviour of quantum particles, such as atoms, electrons and the photons that make up light, has perplexed scientists for nearly a century. Albert Einstein was among those who thought the quantum world was so strange that quantum theory must be wrong, but experiments have borne out the theory's predictions.

One of the weird aspects of quantum theory is that it is impossible to know certain things, such as a particle's momentum and position, simultaneously. Knowledge of one of these properties affects the accuracy with which you can learn the other. This is known as the "Heisenberg Uncertainty Principle."

Another weird aspect is the quantum phenomenon of non-locality, which arises from the better-known phenomenon of entanglement. When two quantum particles are entangled, they can perform actions that look as if they are coordinated with each other in ways that defy classical intuition about physically separated particles.

more

http://www.sciencedaily.com/releases/2010/11/101118141541.htm
Printer Friendly | Permalink |  | Top
flamingdem Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 03:14 PM
Response to Original message
1. Sounds cool but, what exactly does this mean? Jetson's or Star Trek on the way? nt
Printer Friendly | Permalink |  | Top
 
salvorhardin Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 03:23 PM
Response to Reply #1
2. Neither
Actually, if this is true, then we can never invent a Star Trek style subspace radio that will allow us to communicate faster than the speed of light. Kirk and Picard would truly be all alone in a universe where this is true. Starfleet would be waiting thousands of years to get their messages.
Printer Friendly | Permalink |  | Top
 
RaleighNCDUer Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 03:28 PM
Response to Reply #2
3. Ahh, what's Salvor Hardin know? He's a trader, not a physicist.
;-)
Printer Friendly | Permalink |  | Top
 
flamingdem Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 03:34 PM
Response to Reply #3
4. Good. I refuse to accept the limitations he suggests, and Kirk does too! nt
Printer Friendly | Permalink |  | Top
 
RaleighNCDUer Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 05:12 PM
Response to Reply #3
6. Whup - my mistake. He was a politician, not a trader.
The Traders came later

My comment was completely without Foundation.
Printer Friendly | Permalink |  | Top
 
salvorhardin Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 05:14 PM
Response to Reply #3
8. Seldon's Balls!
I'm a politician, damnit. I think you have me confused with that carpet bagger Limmar Ponyets. Although I've got to admit that fellow has some damn fine atomics.
Printer Friendly | Permalink |  | Top
 
hootinholler Donating Member (1000+ posts) Send PM | Profile | Ignore Sat Nov-20-10 12:19 AM
Response to Reply #1
10. I think it's more like the cat had kittens n/t
Printer Friendly | Permalink |  | Top
 
Qutzupalotl Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 04:43 PM
Response to Original message
5. I've got Avogadro's number. Heisenberg, I'm not so sure about.
Printer Friendly | Permalink |  | Top
 
dave29 Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 05:44 PM
Response to Reply #5
9. one can never be sure when it comes to Heisenberg
;)
Printer Friendly | Permalink |  | Top
 
Hissyspit Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Nov-19-10 05:13 PM
Response to Original message
7. I always assumed this was true about Heisenberg's Uncertainty Principle.
Edited on Fri Nov-19-10 05:14 PM by Hissyspit
No, I didn't... I mean, I think I did.
Printer Friendly | Permalink |  | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Sat May 04th 2024, 05:25 AM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » Topic Forums » Science Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC