Interesting, is this teleportation thing restricted only by space or particles can also be tangled being in different time periods?
Quantum teleportation is about preparing two particles so that that by destroying the original particle's state by measuring it, and then transmitting a specific bit pattern as regular information, constrained by the speed of light, the other particle can be made to have the identical quantum state as was measured on the now destroyed particle.
The quantum state is (destructively) "teleported" from one particle onto another (preallocated) particle, obeying the rather mundane rules of classical physics.
The problem comes from having to measure the quantum state of every quantum particle in that banana and transmitting the bits necessary to perform the state transfer. We're talking destructively reading out well over 10^25 particles, turning that into tens of yottabytes of data, and then transmitting that data with error correction over distances that you can't just... you know... ship a banana over.
And then you'd have to receive that data in a way that either lets you perform the transfer in real time, or in a way that lets you store that data so you can transfer the quantum states one by one or in small batches.
And that's if you're okay with "Scanning" the original banana in a way that destroys the banana as yous scan it. Not the quantum states, the actual banana: the destructive read of particles will cause nuclear reactions and so very quickly you're no longer scanning "a banana" but "messed up subatomic partilces".
Why is it that we cannot passively observe quantum states? Why does observation necessarily have to be destructive?
It's the star trek transporter version of teleportation for quantum mechanical systems.
It's the star trek
transporter version of
teleportation for quantum
mechanical systems.
A near-light-speed rocket ship could literally accomplish the same thing.
It is not a gateway technology that opens a portal to a destination. It clones state, and can replicate an infinite series of clones at a station, via transmission of state.
At best it could be called a matter replicator, but it is not teleportation.