Quantum Teleportation Tutorial with OpenQASM on IBM Quantum Experience

Quantum teleportation is a fundamental concept in quantum computing. It introduces a lot of key quantum computing concepts. Here, I’ll cover what quantum teleportation is, the steps to teleport quantum information, and show you how to write this in OpenQASM - Quantum Assembly. I’ll also provide the code on my Github on who to do this with Q#, Microsoft’s Quantum Software Development Kit (SDK).

Join to support my channel!
   / @anastasia-marchenkova  
or over on Patreon:
  / amarchenkova  

Quantum teleportation is a critical concept to take advantage of the powers of quantum information. It's the key behind quantum key distribution and long distance quantum communication, and also used in quantum computing. It allows you to "teleport" - or move the quantum state - to another qubit.

But why do we need to do something special to copy quantum information? For classical information, we simply read the bits, and copy them to another place. We can’t do that on a quantum system.

If we read out a quantum state, the superposition and entanglement is destroyed.

The no-cloning theorem says we cannot copy an unknown quantum state exactly

So, we have to do something a little different. Quantum teleportation is not copying information. It means we "move" the quantum state to another qubit. This requires destroying the state of the qubit we teleported, so we do not violate no-cloning.

Quantum teleportation has been successful over 4 miles in multiple locations over fiber optics, and 870 mi in space at the Quantum Experiments at Space Scale (QUESS) project.

Quantum teleportation requires 3 qubits, and two classical bits to teleport this unknown quantum state.

#quantumteleportation #codequantum #quantumtutorial