Quantum entanglement: Difference between revisions

Latest revision as of 01:36, 1 October 2010

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-'''Entanglement''' is a phenomenon in [[quantum mechanics]] by which two seemingly different systems can be inextricably linked.
+#REDIRECT [[Entanglement (physics)]]
-It is at the heart of the [[EPR paradox]] and the source of the phrase "spooky action at a distance" that is often attributed to Einstein,
-and is also the mechanism that allows [[quantum teleportation]] to be a reality.
-Entanglement is purely quantum mechanical; no true analog exists in the classical world.
-Despite this it is not too hard to invent fictional classical systems that behave as though entangled, for pedagogical purposes.
-One of the most common analogies is to imagine a pair of coins that are normal in every way except that
-after you have flipped one you will know ''with 100% certainty'' what the other will land on
-when you decide to flip it, regardless of how long you wait to flip the second or how far apart
-the coins are when flipped.
-[[Category:CZ Live]]
-[[Category:Physics Workgroup]]