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What is Quantum Teleportation? ft Tibees!

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 Physics   |   Science
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An easy explanation of Quantum Teleportation and how it works.

Hi! I'm Jade. I draw pictures that move and become animated physics videos. Subscribe for new videos every second Thursday!

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https://www.youtube.com/user/tibees

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So how does quantum teleportation work? The information needs to be sent through two entangled particles. So if Toby wants to quantum teleport something to me, we both need one half of an entangled pair of particles.

Quantum teleportation should really be called quantum communication because we're not actually teleporting anything physical. We're teleporting information. We're sending information between two entangled particles. Also, we're sending quantum information, which is a bit different from classical information.

Quantum information needs to be embedded in a quantum particles. It also can't be copied or destroyed. A bit of quantum information is called a qubit.

If toby wants to quantum teleport a qubit to me, it needs to be embedded in a third particle. She wants to send a qubit from her quantum particle to my entangled particle. To do this, she needs to perform a quantum operation which, due to the entanglement, makes her qubit appear on mine.

But this is not superluminal (faster than light) communication. This is encapsulated by the no-go theorem.

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