When and how does entanglement end?

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SUMMARY

Entangled particles can become dis-entangled upon observation. Specifically, when one particle of an entangled pair, referred to as Alice, is measured, the entanglement is broken for that particular property, such as spin or momentum. Consequently, the second particle, known as Bob, will exhibit a measurement that aligns with Alice's result. This phenomenon illustrates the fundamental principles of quantum mechanics regarding entanglement and measurement.

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Suppose two particles become entangled. Are they ever dis-entangled? If so, how? If not, wow.

Thanks!
 
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mcdnlt said:
Suppose two particles become entangled. Are they ever dis-entangled? If so, how? If not, wow.

Thanks!

When one of the pair (say Alice) is observed, it is no longer entangled on that basis (say spin or momentum). Bob will thereafter be observed to be consistent with Alice's result.
 

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