Quantum Teleportation, and Why It Isn't Cloning

Quantum teleportation is often misunderstood as cloning, but it's actually a process that moves an unknown quantum state from one qubit to another while destroying the original. This is due to the no-cloning theorem, which states that it's impossible to deterministically duplicate an unknown qubit. As a result, quantum teleportation doesn't allow for faster-than-light messaging or cloning, and it relies on classical communication between the parties involved. To implement quantum teleportation, a shared entangled pair and classical communication are necessary. This process is often misunderstood and has been oversold in popular accounts.