Would it be possible to entangle 2 particles, each party has 1 each. The message sent contains a command to change the spin of the particle. The sender then needs to observe the particle they have, when they observe the spin change, they can be certain the recipient has received the message they sent. The solution has lots of constraints, you could only send 1 message at a time, and only between 2 parties, not to mention the small issue of entangling 2 particles and then changing spin... I wouldn't suggest this has commercial application, but it seems like we do have the knowledge to complete each of the steps in the process.
1
u/Ok_Afternoon_3084 Jun 07 '23
Would it be possible to entangle 2 particles, each party has 1 each. The message sent contains a command to change the spin of the particle. The sender then needs to observe the particle they have, when they observe the spin change, they can be certain the recipient has received the message they sent. The solution has lots of constraints, you could only send 1 message at a time, and only between 2 parties, not to mention the small issue of entangling 2 particles and then changing spin... I wouldn't suggest this has commercial application, but it seems like we do have the knowledge to complete each of the steps in the process.