What is the concept of spooky action at a distance?

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Discussion Overview

The discussion centers on the concept of "spooky action at a distance," specifically in the context of quantum entanglement. Participants seek to understand the implications and mechanics of this phenomenon, exploring both theoretical and conceptual aspects.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant requests a simple explanation of how quantum entanglement works and what "spooky action at a distance" entails.
  • Another participant references Wikipedia as a source of information, suggesting that others may find it useful.
  • One participant expresses skepticism about the term "action at a distance," arguing that changes in one photon only manifest when measurements are compared, indicating a lack of faster-than-light information exchange.
  • A different participant suggests that "spooky action at a distance" relates to the conservation of properties being measured, specifically mentioning the spin of entangled electrons, but acknowledges the complexity of providing a simple explanation.

Areas of Agreement / Disagreement

Participants exhibit differing views on whether "spooky action at a distance" constitutes true action at a distance or if it is merely a result of measurement comparisons. There is no consensus on the interpretation of the phenomenon.

Contextual Notes

Some participants express uncertainty about the implications of quantum entanglement and the definitions involved in discussing "spooky action at a distance." There are indications of unresolved questions regarding the nature of information exchange in this context.

DrWatson
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"Spooky Action At A Distance"

How does quantum entaglement work? Could someone please give me a simple explanation for "spooky action at a distance"?:confused:
 
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I was suprised myself to find that this already exists in Wikipedia:
http://en.wikipedia.org/wiki/Spooky_action_at_a_distance"

Did you read this already?

Harald.
 
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I don't think its actually action at a distance because the changes in one photon (after altering the other photon) only appear when the measurements are compared but I might be wrong.

I was dissappointed when I learned that it wasn't action at a distance, faster-than-light information exchange.
 
"spooky action at a distance" is simply conservation of what ever it is your measuring. Typically in entagled pairs of electrons it is the spin that is being "altered". Not sure I can give a really simple explanation that doesn't lead to more questions. I would take birulami's suggestion and read wikipedia or some other book on it.

CraigD, AMInstP
www.cymek.com
 

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