This is really just an illustration of quantum cryptography, rather than quantum teleportation. Quantum cryptography is a method of exploiting quantum effects to create a channel that can be used to transmit classical information in a manner that cannot be eavesdropped.
Quantum teleportation is kind of the opposite. It uses a classical information channel in order to transmit -quantum information-, which can't actually be represented clasically. It is actually moving the superposition itself from one place to another. The term "teleportation" is used because the "no cloning" rule (quantum information cannot be "copied") means that the information is no longer in the original location.
This is mostly useful in quantum computers, because in order to actually process information it's pretty important to be able to get it from one piece of the machine to another, and until the recent teleportation breakthroughs building quantum computers that could handle more than a couple "qubits" was pretty much not doable.
Quantum teleportation is kind of the opposite. It uses a classical information channel in order to transmit -quantum information-, which can't actually be represented clasically. It is actually moving the superposition itself from one place to another. The term "teleportation" is used because the "no cloning" rule (quantum information cannot be "copied") means that the information is no longer in the original location.
This is mostly useful in quantum computers, because in order to actually process information it's pretty important to be able to get it from one piece of the machine to another, and until the recent teleportation breakthroughs building quantum computers that could handle more than a couple "qubits" was pretty much not doable.