I Large scale entanglement experiment

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Given below is the research paper and a related video to understand the phenomenon. This experiment is a proof of large scale quantum entanglement can be possible now.
This is the paper and here is the video. As far as I know, this is an entanglement related experiment done so far in such a large scale. I want to know whether entanglement related experiment has been done so far on a larger scale and what can be the possible use of such phenomenons.
 
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Entanglement experiments with Josephson junctions have been done for some time now; those are larger, IIRC, than the drumheads in this experiment.

The interesting part of this experiment is that the degrees of freedom being entangled are mechanical.
 
PeterDonis said:
Entanglement experiments with Josephson junctions have been done for some time now; those are larger, IIRC, than the drumheads in this experiment.
Kindly share links here.
 
I am now interested in practical applications about such phenomenon.
 
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