No. of Recommendations: 2
Yes, that is correct. You have to entangle them before you separate them. So, given what we know, it would then take a very long time for the device to be deployed in another star system. Once there, they could communicate instantly. Getting there would be the challenge. I wonder about the ramifications of simultaneity that is taught in any special relativity class.
We also could deploy it locally, e.g. Mars.
Also you could put them in embassies around the world for absolutely secure communications.
It's a very cool phenomenon.
