I am studying the entanglement in quantum physics, especially the Aspect's experience where 2 photons initially correlated keep this correlation through the measure of their polarity. The Wikipedia article is only available in French, but there is an article in English written by Alain Aspect here that describes the experiments.

I am wondering if there is a way, from an experimental or theoretical point of view, to decorrelate 2 entangled particles ?

Is there any experience which has be performed in this goal to remove the entanglement ?

  • $\begingroup$ Entanglement is destroyed by quantum decoherence. Any interaction with a system that has many degrees of freedom will do it. $\endgroup$ – John Rennie Jul 5 '18 at 16:43
  • $\begingroup$ Is "just throw away any particles you have, and the entanglement is gone" a valid answer? If not, why not? $\endgroup$ – Norbert Schuch Jul 8 '18 at 23:29
  • $\begingroup$ -@John Rennie if I have well understood, a system of 2 entagled particles can't be never considered as an isolated system, can it ? however, for the moment, we don't know if there is a distance limit for entanglement, beyond which entanglement would have disappeared. $\endgroup$ – youpilat13 Jul 16 '18 at 17:21

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