What is the furthest distance particles can interact and still become entangled?

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The discussion centers on the concept of quantum entanglement and the distance at which particles can interact while remaining entangled. It concludes that there is no definitive distance limit for entanglement, as it persists until measurement occurs. The interaction required for entanglement is not dependent on distance, and once measurement takes place, the entangled particles cease to exist as separate entities. Additionally, for macroscopic objects, decoherence happens rapidly, which affects their entanglement properties.

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I was wondering, what is the farthest two particles can interact and still become entangled, and what form of interaction would this require, gravitation? Also, would this be assumed the same in regards for the entanglement of macroscopic objects?
 
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There is no such distance, entanglement remains at arbitrary distances until "measurement" occurs. No interaction occurs between the two entangled particles, rather the two entangled particles do not exist as separate entities before "measurement".

For macroscopic objects, "measurement" occurs in the form of decoherence exponentially fast with the size of the objects.
 

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