We explore the entanglement of the vacuum of a relativistic field by letting a pair of causally disconnected probes interact with the field.
We find that, even when the probes are initially non-entangled, they can wind up to a final entangled state.
Tell me about it.
This shows that entanglement persists between disconnected regions in the vacuum.
However the probe entanglement, unlike correlations, vanishes once the regions become sufficiently separated.
Nothing to add, here. Move along.
Take this with you: Is everything love?
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