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Whats the furthest distance quantum entangled particles have been observed

I been trying to find this out online, but i've not been able to find an answer. I've seen that they have found a few new ways recently to produce entangled pairs. My question is this, whats the furthest distance that an entangled pair has been separated in the lab, but yet has still remained entangled when observed / measured?

 
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  • Asked by masterjb
  • on 2011-02-09 20:20:14
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Categories: Our universe.

Tags: quantumphysics.

 

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 peterwthompson says:

Very far indeed: light from distant galaxies that takes different paths around intervening galaxies due to gravitational lensing will interfere, which is to say the corresponding photons are entangled.

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posted on 2011-02-18 14:10:19 | Report abuse

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