From the course: Quantum Computing Fundamentals

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Quantum teleportation

Quantum teleportation

From the course: Quantum Computing Fundamentals

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Quantum teleportation

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- We use superdense coding to securely transmit classical bits of information. Now let's transmit a quantum state from one qubit to another with quantum teleportation. - Ooh, sounds fancy. Beam me up, Scotty. - Not quite, this isn't science fiction and we won't be physically transporting anything. - So I'm staying here? - You're stuck with me here. - Okay. - The quantum teleportation algorithm transfers quantum information between two locations. We'll use this algorithm to transfer the quantum state from one qubit to another. - So it's like copy and paste, but for quantum computers. - Kind of, but not really. In a classical computer, it's easy to copy information. We simply read the state of a bit that we want to copy and then send another bit to that state. However, that approach doesn't work in a quantum computer because... - Because when you look at the qubit you want to copy, you are implicitly measuring it,…

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