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## Main Question or Discussion Point

Hello,

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 ( https://physics.aps.org/articles/v8/123 ) 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 ?

On another forum, one told me that Entanglement is destroyed by Quantum decoherence ( https://en.wikipedia.org/wiki/Quantum_decoherence ) and that any interaction with a system that has many degrees of freedom will do it.

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, is it right ?

If there is a distance limit, then we could consider maybe that Quantum decoherence destroys the entanglement.

thanks for your clarifications

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 ( https://physics.aps.org/articles/v8/123 ) 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 ?

On another forum, one told me that Entanglement is destroyed by Quantum decoherence ( https://en.wikipedia.org/wiki/Quantum_decoherence ) and that any interaction with a system that has many degrees of freedom will do it.

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, is it right ?

If there is a distance limit, then we could consider maybe that Quantum decoherence destroys the entanglement.

thanks for your clarifications